Optical spectra of recent supernovae of type Ia: SN1995AL, SN1997Y, SN1997BP

被引：6

作者：

Anupama, GC

机构：

[1] Indian Institute of Astrophysics

来源：

ASTRONOMICAL JOURNAL | 1997年 / 114卷 / 05期

关键词：

D O I：

10.1086/118625

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Optical spectra of three recent supernovae of type Ia: SN1995al in NGC 3021, SN1997Y in NGC 4675, and SN1997bp in NGC 4680 are presented. Comparing the spectra with those of other normal type Ia supernovae, the epoch since maximum is estimated for each of the supernovae. Based on the blueshift of the Si II 6355 Angstrom feature, and its location in the galaxy, it appears that SN1997Y belongs to the older, bulge population of the galaxy. (C) 1997 American Astronomical Society.

引用

页码：2054 / 2057

页数：4

共 30 条

[1]

AYANI K, 1995, 6256 IAU

[2]

BARBON R, 1990, ASTRON ASTROPHYS, V237, P79

[3] THE TYPE-I SUPER-NOVA 1981B IN NGC-4536 - THE 1ST 100 DAYS [J].