A numerical light curve model for interaction-powered supernovae

被引：11
作者：
Takei, Yuki [1 ,2 ,3 ]
Shigeyama, Toshikazu [1 ,2 ]
机构：
[1] Univ Tokyo, Res Ctr Early Universe RESCEU, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[2] Univ Tokyo, Grad Sch Sci, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[3] RIKEN, Astrophys Big Bang Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2020年 / 72卷 / 04期
关键词：
circumstellar matter; shock waves; stars: mass-loss; supernovae: general; supernovae:; individual; (SN; 2005kj; SN; 2005ip); EVOLUTION;
D O I：
10.1093/pasj/psaa050
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We construct a numerical light curve model for interaction-powered supernovae that arise from an interaction between the ejecta and the circumstellar matter (CSM). In order to resolve the shocked region of an interaction-powered supernova, we solve the fluid equations and radiative transfer equation assuming steady states in the rest frames of the reverse and forward shocks at each time step. Then we numerically solve the radiative transfer equation and the energy equation in the CSM with the radiative flux obtained from the forward shock as a radiation source. We also compare the results of our models with observational data of two supernovae, 2005kj and 2005ip, classified as type Iln, and discuss the validity of our assumptions. We conclude that our model can predict the physical parameters associated with supernova ejecta and the CSM from the observed features of the light curve as long as the CSM is sufficiently dense. Furthermore, we found that the absorption of radiation in the CSM is an important factor in calculating the luminosity.
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页数：10
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