TY - JOUR
T1 - SN 2016iyc
T2 - a Type IIb supernova arising from a low-mass progenitor
AU - Aryan, Amar
AU - Pandey, S. B.
AU - Zheng, Wei Kang
AU - Filippenko, Alexei V.
AU - Vinko, Jozsef
AU - Ouchi, Ryoma
AU - Brink, Thomas G.
AU - Halle, Andrew
AU - Molloy, Jeffrey
AU - Kumar, Sahana
AU - Halevi, Goni
AU - Kilpatrick, Charles D.
AU - Kumar, Amit
AU - Gupta, Rahul
AU - Ror, Amit Kumar
N1 - Publisher Copyright:
© 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
PY - 2022/12/1
Y1 - 2022/12/1
N2 - In this work, photometric and spectroscopic analyses of a very low-luminosity Type IIb supernova (SN) 2016iyc have been performed. SN 2016iyc lies near the faint end among the distribution of similar supernovae (SNe). Given lower ejecta mass (Mej) and low nickel mass (MNi) from the literature, combined with SN 2016iyc lying near the faint end, one-dimensional stellar evolution models of 9–14 M☉ zero-age main-sequence (ZAMS) stars as the possible progenitors of SN 2016iyc have been performed using the publicly available code MESA. Moreover, synthetic explosions of the progenitor models have been simulated, using the hydrodynamic evolution codes STELLA and SNEC. The bolometric luminosity light curve and photospheric velocities produced through synthetic explosions of ZAMS stars of mass in the range of 12–13 M☉ having a pre-supernova radius R0 = (240–300) R☉, with Mej = (1.89–1.93) M☉, explosion energy Eexp = (0.28–0.35) × 1051 erg, and MNi < 0.09 M☉, are in good agreement with observations; thus, SN 2016iyc probably exploded from a progenitor near the lower mass limits for SNe IIb. Finally, hydrodynamic simulations of the explosions of SN 2016gkg and SN 2011fu have also been performed to compare intermediate- and high-luminosity examples among well-studied SNe IIb. The results of progenitor modelling and synthetic explosions for SN 2016iyc, SN 2016gkg, and SN 2011fu exhibit a diverse range of mass for the possible progenitors of SNe IIb.
AB - In this work, photometric and spectroscopic analyses of a very low-luminosity Type IIb supernova (SN) 2016iyc have been performed. SN 2016iyc lies near the faint end among the distribution of similar supernovae (SNe). Given lower ejecta mass (Mej) and low nickel mass (MNi) from the literature, combined with SN 2016iyc lying near the faint end, one-dimensional stellar evolution models of 9–14 M☉ zero-age main-sequence (ZAMS) stars as the possible progenitors of SN 2016iyc have been performed using the publicly available code MESA. Moreover, synthetic explosions of the progenitor models have been simulated, using the hydrodynamic evolution codes STELLA and SNEC. The bolometric luminosity light curve and photospheric velocities produced through synthetic explosions of ZAMS stars of mass in the range of 12–13 M☉ having a pre-supernova radius R0 = (240–300) R☉, with Mej = (1.89–1.93) M☉, explosion energy Eexp = (0.28–0.35) × 1051 erg, and MNi < 0.09 M☉, are in good agreement with observations; thus, SN 2016iyc probably exploded from a progenitor near the lower mass limits for SNe IIb. Finally, hydrodynamic simulations of the explosions of SN 2016gkg and SN 2011fu have also been performed to compare intermediate- and high-luminosity examples among well-studied SNe IIb. The results of progenitor modelling and synthetic explosions for SN 2016iyc, SN 2016gkg, and SN 2011fu exhibit a diverse range of mass for the possible progenitors of SNe IIb.
KW - supernovae: general
KW - supernovae: individual: SN 2016iyc, SN 2016gkg, SN 2011fu
KW - techniques: photometric
KW - techniques: spectroscopic
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U2 - 10.1093/mnras/stac2326
DO - 10.1093/mnras/stac2326
M3 - Article
AN - SCOPUS:85142211448
SN - 0035-8711
VL - 517
SP - 1750
EP - 1766
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 2
ER -