| Name: | Amar Aryan |
| Affiliation: | Aryabhatta research institute of observational sciences |
| Conference ID : | ASI2022_453 |
| Title : | SN 2016iyc: Pushing the lower limit of the mass of core-collapse supernova progenitors |
| Authors : | Amar Aryan, S. B. Pandey, WeiKang Zheng, Alexei V. Filippenko, Jozsef Vinko, Ryoma Ouchi, Thomas G. Brink, Andrew Halle, Jeffrey Molloy, Sahana Kumar, Goni Halevi, Amit Kumar, Rahul Gupta, and Amit Kumar Ror |
| Abstract Type: | Poster |
| Abstract Category : | Extragalactic Astronomy |
| Abstract : | In this work, the photometric and spectroscopic analyses of a very low-luminosity Type IIb supernova (SN) 2016iyc have been performed. SN2016iyc lies at the fainter end among the distribution of similar supernovae (SNe). The semi-analytic modeling of the multi-band light curves also exhibits a very low ejecta mass of around 0.8 solar mass and also a very low nickel mass fraction of around 0.02. Given lower ejecta mass value and low nickel mass fraction, hydrodynamic modeling of a 9 solar mass zero-age main-sequence star as the possible progenitor of SN2016iyc has been performed and the synthetic explosions from progenitor models have also been simulated. The bolometric luminosity light curve and photospheric velocities produced through synthetic explosions are in good agreement with observations, signaling SN2016iyc to be the first observed core-collapse SN that might have exploded from such a low mass progenitor. |