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Ice Evolution in Star and Planet Formation in the Era of ALMA, JWST, and SPHEREx 2024-03-13

  • Speaker : 이정은 (서울대학교) / Jeong Eun Lee (SNU)
  • Date : 2024-05-22 16:00 ~ 17:00
  • Location : 장영실홀 331-2 (JYS 331-2)
  • Host : 김종수

Understanding ice composition is crucial in star and planet formation. To investigate ices in young stellar objects (YSOs), we can utilize ALMA, JWST, and the upcoming SPHEREx mission. ALMA observations reveal sublimated complex organic molecules, while JWST provides detailed ice absorption spectra. SPHEREx will perform all-sky ice mapping. We emphasize burst accretion, where episodic increases in accretion rates cause ices to sublimate, revealing their composition. YSOs gain mass through episodic accretion, causing luminosity variability. Catching burst events by monitoring YSOs allows for detailed ice composition studies. Identifying bursting YSOs at different evolutionary stages will enable us to track ice evolution from early star formation to planet formation, enhancing our understanding of surface chemistry.

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