Search for spectral evolution in high-redshift type Ia supernovae

被引：0

作者：

Garavini, G ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, IN2P3, LPNHE, F-75252 Paris 05, France

[2] Univ Paris 07, CNRS, IN2P3, LPNHE, F-75252 Paris, France

来源：

1604-2004: Supernovae as Cosmological Lighthouses | 2005年 / 342卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this poster a quantitative comparison of low and high-redshift supernovae by means of spectral indicators is presented. Measurements of Ca II H&K expansion velocity and equivalent width-like measurements of 12 high-redshift supernovae (0.212 < z < 0.912) are found statistically consistent with those of nearby supernovae. One of the supernovae in our dataset, SN 2002fd (z=0.279), shows spectral characteristics similar to peculiars SN 1991T/SN 1999aa.

引用

页码：260 / 261

页数：2

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