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26 April 2024 |
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Modeling the Light Curves of the Luminous Type Ic Supernova 2007D | | Shan-Qin Wang
; Zach Cano
; Long Li
; Liang-Duan Liu
; Ling-Jun Wang
; WeiKang Zheng
; Zi-Gao Dai
; En-Wei Liang
; Alexei V. Filippenko
; | | Date: |
14 Apr 2019 | | Abstract: | SN~2007D is a nearby (redshift $z = 0.023146$), luminous Type Ic supernova
(SN) having a narrow light curve (LC) and high peak luminosity. Previous
research based on the assumption that it was powered by the $^{56}$Ni cascade
decay suggested that the inferred $^{56}$Ni mass and the ejecta mass are $sim
1.5$M$_{odot}$ and $sim 3.5$M$_{odot}$, respectively. In this paper, we
employ some multiband LC models to model the $R$-band LC and the color ($V-R$)
evolution of SN~2007D to investigate the possible energy sources powering them.
We find that the pure $^{56}$Ni model is disfavored; the multiband LCs of
SN~2007D can be reproduced by a magnetar whose initial rotational period
$P_{0}$ and magnetic field strength $B_p$ are $7.28_{-0.21}^{+0.21}$ (or
$9.00_{-0.42}^{+0.32}$) ms and $3.10_{-0.35}^{+0.36} imes 10^{14}$ (or
$2.81_{-0.44}^{+0.43} imes 10^{14}$) G, respectively. By comparing the
spectrum of SN~2007D with that of some superluminous SNe (SLSNe), we find that
it might be a luminous SN like several luminous ’’gap-filler" optical
transients that bridge ordinary and SLSNe, rather than a genuine SLSN. | | Source: | arXiv, 1904.6598 | | Services: | Forum | Review | PDF | Favorites | |
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