Modeling the Light Curves of the Luminous Type Ic Supernova 2007D

DOI: 
10.3847/1538-4357/ab1903
Publication date: 
01/05/2019
Main author: 
Wang, Shan-Qin
IAA authors: 
Cano, Zach
Authors: 
Wang, Shan-Qin;Cano, Zach;Li, Long;Liu, Liang-Duan;Wang, Ling-Jun;Zheng, WeiKang;Dai, Zi-Gao;Liang, En-Wei;Filippenko, Alexei V.
Journal: 
The Astrophysical Journal
Refereed: 
Yes
Publication type: 
Article
Volume: 
877
Pages: 
20
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 <SUP>56</SUP>Ni cascade decay suggested that the inferred <SUP>56</SUP>Ni mass and the ejecta mass are ∼1.5 M <SUB>☉</SUB> and ∼3.5 M <SUB>☉</SUB>, 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 <SUP>56</SUP>Ni model is disfavored; the multiband LCs of SN 2007D can be reproduced by a magnetar whose initial rotational period P <SUB>0</SUB> and magnetic field strength B <SUB> p </SUB> are {7.28}<SUB>-0.21</SUB><SUP>+0.21</SUP> (or {9.00}<SUB>-0.42</SUB><SUP>+0.32</SUP>) ms and {3.10}<SUB>-0.35</SUB><SUP>+0.36</SUP>× {10}<SUP>14</SUP> (or {2.81}<SUB>-0.44</SUB><SUP>+0.43</SUP>× {10}<SUP>14</SUP>) 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.
Database: 
ADS
SCOPUS
URL: 
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85069658749&doi=10.3847%2f1538-4357%2fab1903&partnerID=40&md5=ec4d24e0cb5b5d07f6a68a35ab7068c0
ADS Bibcode: 
2019ApJ...877...20W
Keywords: 
stars: magnetars;supernovae: general;supernovae: individual: SN 2007D;Astrophysics - High Energy Astrophysical Phenomena