Abstract Details

Name: Amar Aryan
Affiliation: ARIES, Nainital
Conference ID: ASI2021_87
Title : Revisiting the type Ib supernova (SN) 2015ap using MESA, STELLA and SNEC
Authors and Co-Authors : Aryan, A. (ARIES, Nainital, Uttarakhand-263002), Pandey, S. B. (ARIES, Nanital, Uttarakhand-263002), Zheng, W. (Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA), Filippenko, A. (Department of Astronomy, University of California, Berkeley, CA 94720- 3411, USA), Ouchi, R. (Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan) et al.
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : Type Ib supernovae (SNe) are classified on the absence of prominent Hydrogen(H)-features in their early spectra. Two progenitor scenarios have been proposed for these catastrophic events. The first case involves a relatively low mass progenitor ( > 12M_sun) in binary system, where the primary star lost its H-envelope through the transfer of mass to the companion star. The second case considers massive Wolf-Rayet (WR) star (> 20 to 25M_sun) that lost mass via stellar winds. On the basis of observed photometric and spectroscopic properties, we compute a 12M_sun zero-age main-sequence (ZAMS) model as the possible progenitor for supernova (SN) 2015ap and evolved that model up to the onset of core-collapse using MESA. Thereafter, the synthetic explosions of the evolved model are produced using STELLA and SNEC. The comparisons between the STELLA and SNEC produced luminosity and velocity evolutions with the observations show good agreement. Thus a combination of MESA, STELLA, and SNEC prove to be a great boon to the supernova community for understanding the possible progenitors of core-collapse SNe.