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  • Institute of Astronomy and Astrophysics
Insights into the final evolution of massive stars: studying circumstellar environments around supernovae

2024-06-18 14:20 - 15:20

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Abstract

It has recently recognized that supernovae showing signatures of strong interaction with the circumstellar media (CSM) are very heterogeneous, with various observational characteristics in the light curve and spectral evolutions. It must reflect diverse natures in the CSM compositions (hydrogen-rich and -free) and distribution (corresponding either to steady-state mass loss or change in the mass-loss rate), ultimately connected to much more diverse stellar evolutionally channels than previously thought. I will provide a biased review on the "interacting" SN populations, covering so-called type IIn, Ibn, Icn, and Ic-CSM supernovae, through optical and radio observations.