2023 Collaborative Seminar between Taiwan and UNAM

Join the Meeting via ZOOM: [https://us06web.zoom.us/j/85729322596?pwd=a002bXJPSGJnaytrVHBZSjJZUVJsQT09]
Meeting ID: 857 2932 2596
Password: 777595

Prof. Yen-Chen Pan (Graduate Institute of Astronomy, National Central University)


September 27, 2023 (Taiwan) | September 26, 2023 (Mexico)


08:30 - 09:30 (GMT+8, Taiwan) | 18:30 - 19:30 (GMT-6, Mexico)


Understanding Type Ia Supernovae with Their Ejecta Velocities


There is growing evidence that Type Ia supernovae (SNe Ia) are likely produced via multiple populations. Distinguishing between these populations and understanding their potential evolution with redshift is crucial for their precision in distance measurement. Recent studies indicate that SN Ia ejecta velocity can be a powerful tool to differentiate these populations. Furthermore, the strong correlation between SN Ia ejecta velocity and host-galaxy environment might introduce evolutionary effects. In this seminar, we will delve into the relationship between SN Ia ejecta velocity and various parameters, exploring their implications for progenitor systems and cosmology.