Light Curves of Type Ia Supernovae

被引：1

作者：

Lyutykh, A. V. ^{[1
,2
]}

Pruzhinskaya, M. V. ^{[2
,3
]}

Blinnikov, S. I. ^{[4
,5
]}

机构：

[1] Moscow State Univ, Fac Phys, Moscow 119991, Russia

[2] Moscow State Univ, Sternberg Astron Inst, Pr Univ Skii 13, Moscow 119234, Russia

[3] Russian Acad Sci, Space Res Inst, Ul Profsoyuznaya 84-32, Moscow 117997, Russia

[4] Natl Res Ctr Kurchatov Inst, Alikhanov Inst Theoret & Expt Phys, Ul Bolshaya Cheremushkinskaya 25, Moscow 117218, Russia

[5] Dukhov All Russian Res Inst Automat, Ul Sushchevskaya 22, Moscow 127055, Russia

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2021年 / 47卷 / 01期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会; 日本学术振兴会;

关键词：

supernovae; light curves; Hubble– Lemaî tre parameter; IMPROVED COSMOLOGICAL CONSTRAINTS; RADIATIVE-TRANSFER; PROGENITOR SYSTEMS; HUBBLE CONSTANT; MODELS; SPECTROPOLARIMETRY; EVOLUTION; BINARIES; LAMBDA;

D O I：

10.1134/S1063773721010060

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have studied the light curves of type Ia supernovae (SNe Ia) and the physical parameters inferred from them. We have constructed both analytical and numerical light curves of SNe Ia. Using an empirical relation between the SN luminosity and light-curve parameters, we have managed to impose constraints on the hydrodynamic solutions obtained by the STELLA code and to produce a sample of models that describe the observational properties of real SNe maximally accurately. With this sample we have established a relationship between the opacity in SN Ia ejecta and the parameters being determined directly from observations. The method has been tested on two classical SNe Ia as an example: 2011fe and 2012fr. The presented approach allows the opacity to be found without resorting to time-consuming computations.

引用

页码：1 / 11

页数：11

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