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Low Mass X-ray Binaries and Globular Clusters in Galaxies 2007-03-21

  • Speaker : Dr. Eunhyeuk Kim (김은혁박사, SNU)
  • Date : 2007-03-21 16:00 ~ 17:00
High resolution imaging observations using Chandra X-ray Observatory<br />
revealed that there is a large population of point sources in external galaxies.<br />
Most of them are believed to be X-ray binaries in galaxies. Low Mass X-ray Binaries<br />
(LMXBs) are the subsef of X-ray binary population with low-mass (typically < 1Msun)<br />
companions indicating old stellar populations in galaxies.<br />
A study of globular clusters (GCs) in external galaxies highlighted<br />
extragalactic astronomy for<br />
last a few decades. Color distribution, radial/spatial distribution and<br />
metallicity distributition of GCs in a galaxy have been used to understand the formation and evolution of a galaxy.<br />
In a dynamical point of view GCs are probable birth-place of compact<br />
binary later to be observed as X-ray binary.<br />
I will present recent studies based on both X-ray and optical observations<br />
regarding the LMXBs in external galaxies with a particular interest on<br />
theirs connection to globular cluster system in galaxies. The possible<br />
formation process for LMXBs will be discussed.<br />
만족도 조사
콘텐츠 담당부서우주진화연구센터
콘텐츠 만족도