Call for applications to doctoral program 2022B in UST-KASI Korea Astronomy and Space Science Institute (KASI) School via the University of Science and Technology (UST) is offering doctoral (direct and integrated) and master scholarships starting from September 2022. PhD scholarships are provided with a competitive salary of about $1100-$1600 per month for the master program and of . about $1500-$2000 per month for the doctoral program. KASI is located in Daejeon, a high tech, educational and research oriented city. Convenient accommodation would be provided to students for the first 3 years in the campus. KASI is actively involved in various fields of astronomy and astrophysics, from astronomical instrumentation to observation and theory, and participates in international collaborative and stand-alone projects including GMT, ALMA, SDSS4, DESI, LSST, KMTNet, and KVN. This semester KASI is accepting applications for the following research areas: • Space Science (supervisor: Prof. Yukinaga Miyashita (miyasita@kasi.re.kr) • Cosmology (supervisor: Prof. Arman Shafieloo (shafieloo@kasi.re.kr) • Astrophyscis (supervisor: Prof. Thiem Hoang (thiemhoang@kasi.re.kr)  and for the detailed description of the specific research topics, see the list attached or in our major homepage (https://www.kasi.re.kr/eng/pageView/140) We encourage qualified international students to apply. Competent students with BSc degrees can apply for an MSc program or an integrated PhD program. Students with MSc degrees may apply directly to the PhD program. Questions on each research area should be sent to each assigned professor, while other questions are sent to the Chief Major Professor (Sang-Sung Lee, sslee@kasi.re.kr). For more information of application, please see the UST web page (https://ust.ac.kr/admission_eng.do). Applications are considered only if they are submitted during March 16 to April 6 (17:00 KST). Best regards, Sang-Sung Lee Chief Major Professor 1. Prof. Yukinaga Miyashita (miyasita@kasi.re.kr) PhD project: This project is for a PhD or integrated PhD student. In Space Weather Research Group, Space Science Division, we are looking for competent and enthusiastic PhD candidates to undertake research in the area of magnetospheric physics and space plasma physics. A successful candidate will be involved in a project to study space weather (near-Earth space environment) and solar wind-magnetosphere-ionosphere coupling, including onset and development mechanisms of space storms and substorms, and associated dynamic auroras. This project will involve analyzing various kinds of in situ and remote-sensing observation data from multiple satellites (e.g., MMS, THEMIS, ERG, and upcoming SNIPE) and ground-based instruments (e.g., auroral cameras, magnetometers, and radars). The student will learn a wide range of this research area and choose and find research topics related to storms, substorms, and/or other magnetospheric phenomena for their dissertation.  MSc project: This project is for a MSc student. In Space Weather Research Group, Space Science Division, we are looking for strongly motivated candidates for an MSc course student to undertake research in the area of magnetospheric physics and space plasma physics. A successful candidate will be involved in a project to study space weather (near-Earth space environment) and solar wind-magnetosphere-ionosphere coupling, including onset and development mechanisms of space storms and substorms, and associated dynamic auroras. This project will involve analyzing various kinds of in situ and remote-sensing observation data from multiple satellites (e.g., MMS, THEMIS, ERG, and upcoming SNIPE) and ground-based instruments (e.g., auroral cameras, magnetometers, and radars). The student will learn a wide range of this research area and choose a research topic related to storms, substorms, and/or other magnetospheric phenomena for their master’s thesis. 2. Prof. Arman Shafieloo (shafieloo@kasi.re.kr) This project is for a PhD or integrated PhD student.  We are looking for competent and enthusiastic PhD candidates to work on physical cosmology and studying dark energy using multi-messenger astronomy. A successful candidate will work on a project to use gravitational wave sources at low and intermediate redshifts (standard sirens) to study dark energy and model independent estimation of Hubble constant. Project would include theoretical analysis, simulations, as well as electromagnetic follow up observation of gravitational wave sources using multiple facilities followed by data reduction and interpretation. Successful candidate would work on projects at Center for the Gravitational-Wave Universe and KASI and can get also officially involved with DESI (Dark Energy Spectroscopic Instrument) and Rubin (formerly known as LSST) international surveys. Developing advanced statistical methods of data analysis (data mining, machine learning, regression approaches) might be a major part of the research activities during the PhD project or integrated-PhD.   3. Prof. Thiem Hoang (thiemhoang@kasi.re.kr) This project is for a PhD or integrated PhD student. We are looking for strongly motivated candidates for a PhD or an Integrated-PhD position in the Theoretical Astrophysics group at Korea Astronomy and Space Science Institute (TagKASI) under the supervision of Prof. Thiem Hoang. The successful candidate will work with Prof. Hoang to study the properties of dust and magnetic fields and their effects on the dynamics and chemistry of circumstellar environments. She/he will perform numerical modeling of dust emission and polarization by grain alignment and rotational disruption, and use the modeling results to interpret multi-wavelength dust emission/polarization observational data and to constrain the properties of dust and magnetic fields. Students will be trained to master a wide range of research skills, including analytical and theoretical ability, numerical modeling, and observational data analysis.

Call for applications to doctoral program 2022A in UST-KASI Korea Astronomy and Space Science Institute (KASI) via the University of Science and Technology (UST) is offering doctoral scholarships (direct and integrated) starting from March 2022. PhD scholarships are provided with a competitive salary of about $1500-$2000 per month. KASI is located in Daejeon, a high tech, educational and research oriented city. Convenient accommodation would be provided to students for the first 3 years in the campus. KASI is actively involved in various fields of astronomy and astrophysics, from astronomical instrumentation to observation and theory, and participates in international collaborative and stand-alone projects including GMT, ALMA, SDSS4, DESI, LSST, KMTNet, and KVN. This semester KASI is accepting applications for the following research areas: • Space Science I  (supervisor: Prof. Young-Sil Kwak, yskwak@kasi.re.kr) • Space Science II (supervisor: Prof. Yukinaga Miyashita, miyasita@kasi.re.kr) • Cosmology (supervisor: Prof. David Parkinson, davidparkinson@kasi.re.kr) • Astrophyscis I (supervisor: Prof. Thiem Hoang, thiemhoang@kasi.re.kr)  • Astrophyscis II (supervisor: Prof. Bindu Rani, brani@kasi.re.kr) and for the detailed description of the specific research topics, see the list attached or in our major homepage (https://kasi.re.kr/eng/pageView/140). We encourage qualified international students to apply. Competent students with BSc degrees can apply for an integrated PhD program. Students with MSc degrees may apply directly to the PhD program.We encourage qualified international students to apply. Competent students with BSc degrees can apply for an MSc program or an integrated PhD program. Students with MSc degrees may apply directly to the PhD program. Questions on each research area should be sent to each assigned professor, while other questions are sent to the Chief Major Professor (Sang-Sung Lee, sslee@kasi.re.kr). For more information of application, please see the UST web page (https://ust.ac.kr/admission_eng.do). Applications are considered only if they are submitted during October 5 to October 25 (17:00 KST). Best regards, Sang-Sung Lee Chief Major Professor 1. Prof. Young-Sil Kwak (yskwak@kasi.re.kr) This project is for a PhD or integrated PhD student. In Space Science Division, we are looking for an enthusiastic PhD candidate in the area of ionospheric research using Global Navigation Satellite System (GNSS) data. A successful candidate will be involved in the project developing a near real-time ionospheric monitoring system using GNSS data. Dissertation research will focus on the analysis of ionospheric variation using ground/space-born GNSS observations and predicting the ionosphere using a deep learning or machine learning approach. The student will work closely with a team of experts from the area of GNSS applications and ionospheric research to learn the data processing and analysis of the results. 2. Prof. Yukinaga Miyashita (miyasita@kasi.re.kr) This project is for a PhD or integrated PhD student. In Space Weather Research Group, Space Science Division, we are looking for competent and enthusiastic PhD candidates to undertake research in the area of magnetospheric physics and space plasma physics. A successful candidate will be involved in a project to study space weather (near-Earth space environment) and solar wind-magnetosphere-ionosphere coupling, including onset and development mechanisms of space storms and substorms, and associated dynamic auroras. This project will involve analyzing various kinds of in situ and remote-sensing observation data from multiple satellites (e.g., MMS, THEMIS, ERG, and upcoming SNIPE) and ground-based instruments (e.g., auroral cameras, magnetometers, andradars). 3. Prof. David Parkinson (davidparkinson@kasi.re.kr) This project is for a PhD or integrated PhD student. In the cosmology group we are looking for enthusiastic and competent PhD candidates to undertake research in the area of cosmological and theoretical astrophysics. The next generation of large-area astronomical surveys will provide new and accurate data for answering such important questions as “what is the nature of the mysterious dark energy?” and “what were the initial conditions of the Universe?” A successful candidate will have the opportunity to become involved in two of these surveys, DESI (Dark Energy Spectroscopic Instrument) in the optical, and EMU (the Evolutionary Map of the Universe) in the radio. The project will involve analysing data from these surveys and testing these cosmological models (such as dark energy theories and alternative models of gravity) against this data. The project will also involve developing advanced statistical methods of data analysis (such as Bayesian methods, and machine learning approaches), providing training in the area of big data analysis, which will be useful both inside astrophysics and external industrial sectors.  4. Prof. Thiem Hoang (thiemhoang@kasi.re.kr) This project is for a MSc student. We are looking for strongly motivated candidates for a Master student position in Theoretical Astrophysics group at Korea Astronomy and Space Science Institute (TagKASI) under supervision of Prof. Thiem Hoang. The successful candidate will work with Prof. Hoang to study the interaction of stellar radiation from evolved stars with circumstellar dust. She/he will perform numerical modeling of dust polarization by grain alignment and rotational disruption, and use the modeling results to interpret multi-wavelength dust polarization observational data. Students will be trained to master a wide range of research skills, including analytical and theoretical ability, numerical modeling, and observational data analysis. 5. Prof. Bindu Rani (brani@kasi.re.kr) This project is for a PhD or integrated PhD student. A wide variety of astrophysical sources, from young stellar objects to white dwarfs, neutron stars, stellar mass and supermassive black holes (SMBHs), produce collimated outflows, or jets. One of the most intriguing and challenging quests of modern astrophysics is to reveal the formation mechanism of jets. Understanding jets from SMBHs in the context of active galactic nuclei (AGN) is a particularly crucial question because the jets are one of the main ways in which accreting SMBHs provide kinetic feedback on their surroundings and affect star formation, galaxy evolution, and the growth of SMBHs themselves. Different components of an AGN dominate the observed radiation at different wavelengths, making multi-frequency observations one of the most powerful approaches to probe how the central engine of an AGN feeds and regulates the jets. Synchrotron radiation from the jets shines at radio wavelengths. However, the origin of X-ray emission is much less clear. X-rays could either originate in the immediate vicinity of the central black hole (disk/corona) or further out in the jets. The proposed research will capitalize on the observed variations in the X-ray and radio regimes to disentangle the disk/corona and jet contribution in the observed X-ray emission.  Studying the temporal behavior of the astrophysical objects in systematic ways and over wide ranges of the electromagnetic spectrum enable us to discover new and unexpected phenomena. Time-domain astrophysicsis one of the most promising discovery areas of the decade. Variability is a peculiar characteristic of blazars. Thanks to relativistic beaming, even small modes of variations are detectable. The multi-frequency variations of AGN carry key characteristic signatures of physical processes happening several billions of light years away from us. Since different parts of an AGN dominate the observed radiation at different wavelengths, hunting correlations among broadband observations is one of the most feasible approaches to understand how the central engine of an AGN works, how it consumes gas and regulates the jets, how disturbances start in the first place, and how the disturbances propagate down the jet to produce the observed broadband flares. The prime focus of the project is to disentangle disk/corona and jet contributions in the observed X-ray emission by making use of the NASA's Swift and Nustar missions and radio VLBI observations for the same sources. The proposed research will involve the following three sub-projects:1. X-ray spectral analysis to disentangle the disk/corona and jet emission.2. Comparing the X-ray flux variations with the ejections of new components/knots from the radio core to pinpoint the X-ray emitting sites.3. Testing the correlation between parsec-scale jet orientation variations (jet wobbling) and X-ray flux variations to reveal how the dynamics of the accretion disk affect jet morphology.

Call for applications to doctoral program 2021B in UST-KASI Korea Astronomy and Space Science Institute (KASI) via the University of Science and Technology (UST) is offering doctoral scholarships (direct and integrated) starting from September 2021. PhD scholarships are provided with a competitive salary of about $1500-$2000 per month. KASI is located in Daejeon, a high tech, educational and research oriented city. Convenient accommodation would be provided to students for the first 3 years in the campus. KASI is actively involved in various fields of astronomy and astrophysics, from astronomical instrumentation to observation and theory, and participates in international collaborative and stand-alone projects including GMT, ALMA, SDSS4, DESI, LSST, KMTNet, and KVN. This semester KASI is accepting applications for the following research areas: • Cosmology I (supervisor: Prof. David Parkinson, davidparkinson@kasi.re.kr) • Cosmology II (supervisor: Prof. Arman Shafieloo, shafieloo@kasi.re.kr)  and for the detailed description of the specific research topics, see the list attached or in our major homepage (https://kasi.re.kr/eng/pageView/140). We encourage qualified international students to apply. Competent students with BSc degrees can apply for an integrated PhD program. Students with MSc degrees may apply directly to the PhD program. Questions on each research area should be sent to each assigned professor, while other questions are sent to the Chief Major Professor (Sang-Sung Lee, sslee@kasi.re.kr). For more information of application, please see the UST web page (https://ust.ac.kr/admission_eng.do). Applications are considered only if they are submitted during March 18 to April 8 (17:00 KST). Best regards, Sang-Sung Lee Chief Major Professor 1. Prof. David Parkinson (davidparkinson@kasi.re.kr) In the cosmology group we are looking for enthusiastic and competent PhD candidates to undertake research in the area of cosmological and theoretical astrophysics. The next generation of large-area astronomical surveys will provide new and accurate data for answering such important questions as “what is the nature of the mysterious dark energy?” and “what were the initial conditions of the Universe?” A successful candidate will have the opportunity to become involved in two of these surveys, DESI (Dark Energy Spectroscopic Instrument) in the optical, and EMU (the Evolutionary Map of the Universe) in the radio. The project will involve analysing data from these surveys and testing these cosmological models (such as dark energy theories and alternative models of gravity) against this data. The project will also involve developing advanced statistical methods of data analysis (such as Bayesian methods, and machine learning approaches), providing training in the area of big data analysis, which will be useful both inside astrophysics and external industrial sectors. This project is for a PhD or integrated PhD student. 2. Prof. Arman Shafieloo (shafieloo@kasi.re.kr) We are looking for competent and enthusiastic PhD candidates to work on physical cosmology. A successful candidate will become officially involved with SDSS-IV (Sloan Digital Sky Survey, Stage 4), DESI (Dark Energy Spectroscopic Instrument) and LSST (Large Synoptic Survey Telescope) surveys and the project will include studying and performing research on different aspects of physical cosmology such as testing early universe scenarios and studying dark energy using large scale structure and other cosmological data. Developing advanced statistical methods of data analysis (data mining, machine learning, regression approaches) might be a major part of the research during the PhD project or integrated-PhD.

The UST-KASI campus introduce an admission schedule and a detailed description of the specific research topics. See the attached file and contact each assigned professor for the questions on each research area. And here is a link to information page for prospective students.Prospective Students [International Admission Schedule] International Admission Schedule for 2021 Spring Semester Schedule No. Recruitment procedure Period 1 Announcement of Application Guidelines Aug 11(Tue), 2020 2 Apply for Admission Aug 17(Mon) ~ Sep 18(Fri) 17:00(GMT+9), 2020 3 Announcement of the 1st Screening Results Nov 6(Fri) 17:00(GMT+9), 2020 4 The 2nd Screening (In-depth Interview) Nov 13(Fri) ~ Nov 20(Fri), 2020 5 Announcement of the Final Results Dec 9(Wed) 17:00(GMT+9), 2020 6 Admission Registration Dec 10(Thu) ~ Dec 18(Fri), 2020 ※ The schedule may be subject to change. [Notes - Application fee]  All applicants for 2021 Spring Semester will require to pay the application fee and it must be submitted each time you apply for admission.  Your application cannot be submitted until the application fee has been processed.    - Application fee : USD 30 or KRW 36,000    - How to pay : by credit card service online        ※ Please check whether your credit card can be used on online service in advance.    - Application fee cannot be waived nor deferred, and is non-refundable. [Inquiry]    - Chief Major Professor, KASI (E-mail : sslee@kasi.re.kr)    - Student Affairs Team, UST (Tel : +82-42-865-2334, E-mail : F_adm@ust.ac.kr)

Korea Astronomy and Space Science Institute (KASI) via the University of Science and Technology (UST) is offering doctoral scholarships (direct and integrated) starting from March 2020 (for more info, see  https://www.ust.ac.kr/astros_eng.do).  PhD scholarships are provided with a competitive salary of about $1500 per month. KASI is located in Daejeon, a high tech, educational and research oriented city. Convenient accommodation would be provided to students for the first 3 years in the campus. KASI is actively involved in various fields of astronomy and astrophysics, from astronomical instrumentation to observation and theory, and participates in international collaborative and stand-alone projects including GMT, ALMA, SDSS4, DESI, LSST, KMTNet, and KVN. This semester KASI is accepting applications for the following research areas:   •  Cosmology  I  (supervisor:  Prof.  Arman Shafieloo,  shafieloo@kasi.re.kr)   •  Cosmology  II (supervisor:  Prof.  David Parkinson,  davidparkinson@kasi.re.kr)    •  Theoretical Astrophysics (supervisor: Prof. Thiem Hoang, thiemhoang@kasi.re.kr) and for the detailed description of the specific research topics, see the list attached or in our major homepage  (https://www.ust.ac.kr/astros_eng.do). We encourage qualified international students to apply. Competent students with BSc degrees can apply for an integrated PhD program. Students with MSc degrees may apply directly to the PhD program. Questions on each research area should be sent to each assigned professor, while other questions are sent to the Chief Major Professor (Sang-Sung Lee, sslee@kasi.re.kr).  For more information of application, also see the UST web page  (https://ust.ac.kr/admission_eng.do).  Applications are considered only if they are submitted during August 19 to September 20 (17:00 KST). Best regards,  Sang-Sung Lee  Chief  Major  Professor 1. Prof.  Arman Shafieloo  (shafieloo@kasi.re.kr) In cosmology group we are looking for a strong, competent and enthusiastic PhD candidates in order to train them at a competitive level internationally and making them prepared for the near future and next generation of the cosmological surveys. A successful candidate will become officially involved with SDSS-IV (Sloan Digital Sky Survey, Stage 4), DESI (Dark Energy Spectroscopic Instrument) and LSST (Large SynopticSurvey Telescope) surveys and the project will include studying and performing research on different aspects of physical cosmology such as testing early universe scenarios and reconstruction of the growth and expansion history of the universe using large scale structure data. Developing advanced statistical methods of data analysis (data mining, machine learning, regression approaches) and preparation to deal with future big data will be a major part of the research during the PhD project or integrated-PhD. 2. Prof.  David Parkinson (davidparkinson@kasi.re.kr) In the cosmology group we are looking for enthusiastic and competent PhD candidates to undertake research in the area of cosmological and theoretical astrophysics. The next generation of large-area astronomical surveys will provide new and accurate data for answering such important questions as “what is the nature of the mysterious dark energy?” and “what were the initial conditions of the Universe?” A successful candidate will have the opportunity to become involved in two of these surveys, DESI (Dark Energy Spectroscopic Instrument) in the optical, and EMU (the Evolutionary Map of the Universe) in the radio. The project will involve analysing data from these surveys and testing these cosmological models (such as dark energy theories and alternative models of gravity) against this data. The project will also involve developing advanced statistical methods of data analysis (such as Bayesian methods, and machine learning approaches), providing training in the area of big data analysis, which will be useful both inside astrophysics and external industrial sectors. 3. Prof.  Thiem Hoang (thiemhoang@kasi.re.kr) Project Title: Theoretical and Computational Astrophysics Program: Integrated – Ph.D. We are looking for outstanding and strongly motivated candidates for an integrated-Ph.D. or Ph.D. position in Theoretical Astrophysics group under supervision of Prof. Thiem Hoang. The successful candidate will be part of an international team to research on the interaction of cosmic explosions, including supernovae, kilonova, and gamma-ray burst afterglows, with their surrounding environments. The candidate will work on the formulation of new theory for extremely powerful radiation-dust interaction, development of numerical tools, and application to interpret multi-wavelength observational data of dust extinction, emission, and polarization of cosmic transients provided by upcoming unprecedented powerful telescopes such as GMT, LSST, and WFIRST. An important goal of this project is to clarify the effects of cosmic transients onto the physical and chemical properties of the surrounding environments and use observational data to probe the extragalactic environments which are inaccessible with other tracers. Students will be trained to master a wide range of research skills, including analytical and theoretical ability, numerical modeling and computational simulations.

Korea Astronomy and Space Science Institute (KASI) via the University of Science and Technology (UST) is offering doctoral scholarships (direct and integrated) starting from March 2019 (for more info, see  https://www.ust.ac.kr/astros_eng.do).  PhD scholarships are provided with a competitive salary of about $1500 per month. KASI is located in Daejeon, a high tech, educational and research oriented city. Convenient accommodation would be provided to students for the first 3 years in the campus. KASI is actively involved in various fields of astronomy and astrophysics, from astronomical instrumentation to observation and theory, and participates in international collaborative and stand-alone projects including GMT, ALMA, SDSS4, DESI, LSST, KMTNet, and KVN. This semester KASI is accepting applications for the following research areas:   •  Cosmology  I (supervisor:  Prof.  David Parkinson,  davidparkinson@kasi.re.kr)    •  Cosmology  II  (supervisor:  Prof.  Arman Shafieloo,  shafieloo@kasi.re.kr) and for the detailed description of the specific research topics, see the list attached or in our major homepage  (https://www.ust.ac.kr/astros_eng.do). We encourage qualified international students to apply. Competent students with BSc degrees can apply for an integrated PhD program. Students with MSc degrees may apply directly to the PhD program. Questions on each research area should be sent to each assigned professor, while other questions are sent to the Chief Major Professor (Sang-Sung Lee, sslee@kasi.re.kr).  For more information of application, also see the UST web page  (https://ust.ac.kr/admission_eng.do).  Applications are considered only if they are submitted during February 12 to March 18 (17:00 KST). Best regards,  Sang-Sung Lee  Chief  Major  Professor 1. Prof.  David Parkinson (DavidParkinson@kasi.re.kr) In the cosmology group we are looking for enthusiastic and competent PhD candidates to undertake research in the area of cosmological and theoretical astrophysics. The next generation of large-area astronomical surveys will provide new and accurate data for answering such important questions as “what is the nature of the mysterious dark energy?” and “what were the initial conditions of the Universe?”  A successful candidate will have the opportunity to become involved in two of these surveys, DESI (Dark Energy Spectroscopic Instrument) in the optical, and EMU (the Evolutionary Map of the Universe) in the radio. The project will involve analysing data from these surveys and testing these cosmological models (such as dark energy theories and alternative models of gravity) against this data. The project will also involve developing advanced statistical methods of data analysis (such as Bayesian methods, and machine learning approaches), providing training in the area of big data analysis, which will be useful both inside astrophysics and external industrial sectors. 2. Prof.  Arman Shafieloo  (shafieloo@kasi.re.kr) In cosmology group we are looking for a strong, competent and enthusiastic PhD candidates in order to train them at a competitive level internationally and making them prepared for the near future and next generation of the cosmological surveys. A successful candidate will become officially involved with SDSS-IV (Sloan Digital Sky Survey, Stage 4), DESI (Dark Energy Spectroscopic Instrument) and LSST (Large SynopticSurvey Telescope) surveys and the project will include studying and performing research on different aspects of physical cosmology such as testing early universe scenarios and reconstruction of the growth and expansion history of the universe using large scale structure data. Developing advanced statistical methods of data analysis (data mining, machine learning, regression approaches) and preparation to deal with future big data will be a major part of the research during the PhD project or integrated-PhD.

Korea  Astronomy  and  Space  Science  Institute  (KASI)  via  the  University  of  Science  and  Technology  (UST)  is  offering  doctoral  scholarships  (direct  and  integrated)  starting  from  March  2019  (for  more  info,  see  https://www.ust.ac.kr/astros_eng.do).  PhD  scholarships  are  provided  with  a  competitive  salary  of  about  $1500  per  month.  KASI  is  located  in  Daejeon,  a  high  tech,  educational  and  resear ch  oriented  city.  Convenient  accommodation  would  be  provided  to  students for  the first  3  years  in the  campus. KASI  is  actively  involved  in  various  fields  of  astronomy  and  astrophysics,  from  astronomical  instrumentation  to  observation  and  theory,  and  participates  in  international  collaborative  and  stand-alone  projects  including  GMT,  ALMA,  SDSS4,  DESI,  LSST,  KMTNet,  and  KVN.  This  semester  KASI  is  accepting  applications  for  the  following  research areas:   •  Cosmology  I (supervisor:  Prof.  Arman Shafieloo,  shafieloo@kasi.re.kr)    •  Cosmology  II  (supervisor:  Prof.  David Parkinson,  davidparkinson@kasi.re.kr) and  for  the  detailed  description  of  the  specific  research  topics,  see  the  list  attached  or  in  our major  homepage  (https://www.ust.ac.kr/astros_eng.do). We  encourage  qualified  international  students  to  apply.  Competent  students  with  BSc  degrees  can  apply  for  an  integrated  PhD  program.  Students  with  MSc  degrees  may  apply  directly to the  PhD  program. Questions  on  each  research  area  should  be  sent  to  each  assigned  professor,  while  other  questions  are  sent  to  the  Chief  Major  Professor  (Sang-Sung  Lee,  sslee@kasi.re.kr).  For  more  information  of  application,  also  see  the  UST  web  page  (https://ust.ac.kr/admission_eng.do).  Applications  are  considered  only  if  they  are  submitted  during August  20  to  September  21  (17:00  KST). Best regards,  Sang-Sung Lee  Chief  Major  Professor 1. Prof.  Arman Shafieloo  (shafieloo@kasi.re.kr) In  cosmology  group  we  are  looking  for  very  strong,  competent  and  enthusiastic  PhD  candidates  in  order  to  train  them  at  a  competitive  level  internationally  and  making  them  prepared  for  the  near  future  and  next  generation  of  the  cosmological  surveys.  A  successful  candidate  will  become  officially  involved  with  SDSS-IV  (Sloan  Digital  Sky  Survey,  Stage  4),  DESI  (Dark  Energy  Spectroscopic  Instrument)  and  LSST  (Large  Synoptic  Survey  Telescope)  surveys  and  the  project  will  include  studying  and  performing  research  on  different  aspects  of  physical  cosmology  and  in  particular  on  “dark  energy  and  late  Universe  by  cross  correlating  between  different  observations”.  Developing  advanced  statistical  methods  of  data  analysis  (data  mining,  machine  learning,  regression  approaches)  and  preparation  to  deal  with  future  big  data  will  be  a major  part of  the  research  during  the  PhD  project  or  integrated-PhD. 2. Prof.  David Parkinson (DavidParkinson@kasi.re.kr) In  the  cosmology  group  we  are  looking  for  enthusiastic  and  competent  PhD  candidates  to  undertake  research  in  the  area  of  cosmological  and  theoretical  astrophysics.  The  next  generation  of  large-area  astronomical  surveys  will  provide  new  and  accurate  data  for  answering  su ch  important  questions  as  “what  is  the  nature  of  the  mysterious  dark  energy?”  and  “what  were  the  initial  conditions  of  the  Universe?”  A  successful  candidate  will  have  the  opportunity  to  become  involved  in  two  of  these  surveys,  DESI  (Dar k  Energy  Spectroscopic  Instrument)  in  the  optical,  and  EMU  (the  Evolutionary  Map  of  the  Universe)  in  the  radio.  The  project  will  involve analysing  data  from these  surveys  and  testing  these  cosmological  models  (such  as  dark  energy  theories  and  alternative  models  of  gravity)  against  this  data.  The  project  will  also  involve  developing  advanced  statistical  methods  of  data  analysis  (su ch  as  Bayesian  methods,  and machine  learning approaches),  providing  training  in  the  area  of  big  data  analysis,  which  will be  useful both inside astrophysics  and  external  industrial  sectors.

Korea Astronomy and Space Science Institute (KASI) via the University of Science and Technology (UST) is offering doctoral scholarships (direct and integrated) starting from September 2018 (for more info, see https://www.ust.ac.kr/astros_eng.do). PhD scholarships are provided with a competitive salary of about $1500 per month. KASI is located in Daejeon, a high tech, educational and research oriented city. Convenient accommodation would be provided to students for the first 3 years in the campus. KASI is actively involved in various fields of astronomy and astrophysics, from astronomical instrumentation to observation and theory, and participates in international collaborative and stand-alone projects including GMT, ALMA, SDSS4, DESI, LSST, KMTNet, and KVN. This semester KASI is accepting applications for the following research areas: - Theoretical Astrophysics & Cosmology - Extragalactic Astronomy and also see the list of specific research topics in the end of this announcement. We encourage qualified international students to apply. Competent students with BSc degrees can apply for an integrated PhD program. Students with MSc degrees may apply directly to the PhD program. Questions on each research area should be sent to each assigned professor, while other questions are sent to the Chief Major Professor (Sang-Sung Lee, sslee@kasi.re.kr). For more information of application, also see the UST web page (https://ust.ac.kr/admission_eng.do). Applications are considered only if they are submitted during Feb 12 to March 16 (17:00 KST). Best regards, Sang-Sung Lee Chief Major Professor =================================================== A list of PhD projects for the fall semester in 2018 is following: 1. Prof. Bong Won Sohn  (bwsohn@kasi.re.kr) This is a PhD project and joint research project with INAF/IRA Bologna. The student is expected to participate our joint research program. We intend to address the issue of the actual triggering of the black hole activity. Therefore, we will aim at the selection of SMBH with very young jets, i.e. jets that have just started making their way out of the SMBH through the galaxy. These sources were selected on the basis of their spectral and temporal variations, a process that is already under way from our team, both using existing data and acquiring new ones with Korean and Italian telescopes. This includes also studies of the bright young radio source 3C84 and newly found sources from recent weka Blazar surveys. The student is supposed to conduct KVN, KaVA, EVN, and EATING VLBI observations and data analysis. 2. Prof. Arman Shafieloo (shafieloo@kasi.re.kr) In cosmology group we are looking for very strong, competent and enthusiastic PhD candidates in order to train them at a competitive level internationally and making them prepared for the near future and next generation of the cosmological surveys. A successful candidate will become officially involved with SDSS-IV (Sloan Digital Sky Survey, Stage 4) and DESI (Dark Energy Spectroscopic Instrument) surveys and the project will include studying and performing research on different aspects of physical cosmology such as testing early universe scenarios and reconstruction of the growth and expansion history of the universe using large scale structure data. Developing advanced statistical methods of data analysis (data mining, machine learning, regression approaches) and preparation to deal with future big data will be a major part of the research during the PhD project or integrated-PhD. 3. Prof. Thiem Hoang (thiemhoang@kasi.re.kr) Project Title: Physical modeling of Galactic dust polarization and Applications  How did our Universe begin? According to the standard Big Bang theory, our Universe began about 13.7 billion years ago with an early exponential expansion of space, so-called inflation. Inflation is predicted to generate primordial gravitational waves that left the imprint as pinwheel-like (B-mode) patterns in the CMB polarization map. Therefore, the detection of CMB B-modes would constitute conclusive evidence of Inflation, leading to a complete understanding of our early Universe. However, the recent joint analysis of BICEP2/Keck Array and Planck data has revealed that the first detection of CMB B-modes is only achieved when Galactic dust polarization is accurately modeled and separated from the CMB polarization data.  The successful candidate will be part of an international team to work on developing a self-consistent physical model of Galactic dust polarization by linking grain alignment to dust properties and local physical conditions of the interstellar medium. An important goal of this project is to apply the self-consistent polarization model to constrain the physics of the early universe with the CMB polarization as well as the physics of the interstellar medium. Students will be trained to master a wide range of research skills, including analytical and theoretical ability, numerical modeling and computational simulations.

Korea Astronomy and Space Science Institute (KASI) via the University of Science and Technology (UST) is offering doctoral scholarships (direct and integrated) starting from March 2018 (for more info, see https://www.ust.ac.kr/astros_eng.do). PhD scholarships are provided with a competitive salary of about $1500 per month. KASI is located in Daejeon, a high tech, educational and research oriented city. Convenient accommodation would be provided to students for the first 3 years in the campus. KASI is actively involved in various fields of astronomy and astrophysics, from astronomical instrumentation to observation and theory, and participates in international collaborative and stand-alone projects including GMT, ALMA, SDSS4, DESI, LSST, KMTNet, and KVN. This semester KASI is accepting applications for the following research areas: - Theoretical Astrophysics & Cosmology - Galactic and Extragalactic Astronomy - Space Science and also see the list of specific research topics in the end of this announcement. We encourage qualified international students to apply. Competent students with BSc degrees can apply for an integrated PhD program. Students with MSc degrees may apply directly to the PhD program. Questions on each research area should be sent to each assigned professor, while other questions are sent to the Chief Major Professor (Sang-Sung Lee, sslee@kasi.re.kr). For more information of application, also see the UST web page (https://ust.ac.kr/admission_eng.do).  Applications are considered only if they are submitted during August 24 to September 8. Best regards, Sang-Sung Lee Chief Major Professor =================================================== A list of PhD projects for the spring semester in 2018 are following: 1. Prof. Young-Sil Kwak  (yskwak@kasi.re.kr) Study on the Ionospheric irregularities using ground-based and satellite observation data : (1) Study on the characteristics of the middle latitude ionospheric irregularities by using KASI ionospheric radar and MU radar. (2) Study on the generation mechanism of the middle latitude ionospheric irregularities by using all-sky camera, GPS TEC map, scintillation monitor, ionosonde, meteor radar and SWARM satellite observation data. (3) Study on the characteristics of the high-latitude ionospheric irregularities by using polar space environment observation system (all-sky camera, FPI, VIPIR, scintillation monitor) which are operated by KASI and KOPRI, and EISCAT observation and SWARM satellite data. 2. Prof. Arman Shafieloo (shafieloo@kasi.re.kr) In cosmology group we are looking for very strong, competent and enthusiastic PhD candidates in order to train them at a competitive level internationally and making them prepared for the near future and next generation of the cosmological surveys. A successful candidate will become officially involved with SDSS-IV (Sloan Digital Sky Survey, Stage 4) and DESI (Dark Energy Spectroscopic Instrument) surveys and the project will include studying and performing research on different aspects of physical cosmology such as testing early universe scenarios and reconstruction of the growth and expansion history of the universe using large scale structure data. Developing advanced statistical methods of data analysis (data mining, machine learning, regression approaches) and preparation to deal with future big data will be a major part of the research during the PhD project. Candidates are required to have strong mathematics and physics background and during the course of PhD a successful candidate has to work on and develop advanced methods of data analysis tailored suitably to analyze cosmology data in different context. 3. Prof. Sang-Sung Lee (sslee@kasi.re.kr) Origins of Gamma-ray Flares in Active Galactic Nuclei:  Gamma-ray flares of Active Galactic Nuclei (AGN) are known to be occurred in innermost regions of relativistic jets which radiate in whole ranges of electromagnetic spectra due to synchrotron radiation, synchrotron self absorption, inverse-Compton scattering, Doppler boosting etc. Here we may raise two questions on the nature of the gamma-ray flares of AGN such as: a) What is the basic cause of the gamma-ray flares from AGNs? b) What is the physical process of the causes? For the first question, there are several suggestions like 1) a relativistic jet of high energy plasma, 2) Doppler boosting of synchrotron radiation of the jet, 3) inverse Compton scattering by relativistic electrons, etc. For the second question, we may find some candidates and detail mechanism for the gamma-ray flares such as 1) compression and heating of the plasma in the relativistic jets, 2) generation of the relativistic particles, 3) rapid variability in flux and magnetic field. In order to answer to the questions, we may conduct either 1) studies of large samples of flaring AGNs for investigating statistics and correlation of observed properties, 2) multi-wavelength observations of individual objects for testing time profiles of flares, for studying physical properties of emission features (jet knots), and studying evolution of SEDs , or 3) polarization observations for looking at magnetic field environments. Possible explanations of the gamma-ray flares in AGNs are a) shocks-in-jets propagating within jet flow and b) bending of the whole jets. For both cases, we should expect changes in polarization, luminosity, particle distribution, and structures of jets at mas-scale. The multifrequency simultaneous VLBI/SD observations with Korean VLBI Network are one of the best tools for detecting such changes correlated with gamma-ray flares. A key science program of KVN aims to answer the fundamental questions about the basic nature of the flares of AGN. The Interferometric Monitoring of Gamma-ray Bright AGNs (iMOGABA) project has been launched in 2015 as a key science program of KVN. This project uses KVN for monthly interferometric monitoring of more than 30 gamma-ray bright AGN at 22, 43, 86, and 129 GHz simultaneously (see http://radio.kasi.re.kr/sslee for preliminary results). The iMOGABA aims especially at the potential connection between gamma-ray outbursts and the formation of new jet components, by investigating the potential correlation of the gamma-ray light curves with the brightness and mas-scale structures of the inner jets. The monitoring cadence of a month and the observing frequencies of 22-129GHz make this project unique in studying the gamma-ray flaring AGN. Students will be actively involved in this project and leading stuides on individual AGNs in this program. 4. Prof. Thiem Hoang (thiemhoang@kasi.re.kr) Self-consistent physical modeling of Galactic dust polarization and Applications  ▶ How did our Universe begin? According to the standard Big Bang theory, our Universe began about 13.7 billion years ago with an early exponential expansion of space, so-called inflation. Inflation is predicted to generate primordial gravitational waves that left the imprint as pinwheel-like (B-mode) patterns in the CMB polarization map. Therefore, the detection of CMB B-modes would constitute conclusive evidence of Inflation, leading to a complete understanding of our early Universe. However, the recent joint analysis of BICEP2/Keck Array and Planck data has revealed that the first detection of CMB B-modes is only achieved when Galactic dust polarization is accurately modeled and separated from the CMB polarization data.  The successful candidate will be part of an international team to work on developing a self-consistent physical model of Galactic dust polarization by linking grain alignment to dust properties and local physical conditions of the interstellar medium. An important goal of this project is to apply the self-consistent polarization model to constrain the physics of the early universe with the CMB polarization as well as the physics of the interstellar medium. Students will be trained to master a wide range of research skills, including analytical and theoretical ability, numerical modeling and computational simulations.