伽玛暴(Gamma-Ray Burst)笔记。记录有关伽玛暴的新文章,另外也包括看的老文章、自己的想法、以及跟天文相关的一些东西。 Feel free to leave me a message by comments or by email.

星期四, 十二月 11, 2008

Richardson 2008 对和伽玛暴成协的超新星的统计

主要内容:

这些超新星的动能和辐射出的质量都要更大一些.

精彩摘抄:
一些著名的GRB/SN

文章信息:

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· arXiv e-print (arXiv:0812.2007)
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Title:
Absolute Magnitude Distribution And Light Curves Of Gamma-Ray Burst Supernovae
Authors:
Richardson, Dean
Publication:
eprint arXiv:0812.2007
Publication Date:
12/2008
Origin:
ARXIV
Keywords:
Astrophysics
Comment:
Accepted by AJ, 16 pages, 5 figures
Bibliographic Code:
2008arXiv0812.2007R

Abstract

Photometry data were collected from the literature and analyzed for supernovae that are thought to have a gamma-ray burst association. There are several gamma-ray burst afterglow light curves that appear to have a supernova component. For these light curves, the supernova component was extracted and analyzed. A supernova light curve model was used to help determine the peak absolute magnitudes as well as estimates for the kinetic energy, ejected mass and nickel mass in the explosion. The peak absolute magnitudes are, on average, brighter than those of similar supernovae (stripped-envelope supernovae) that do not have a gamma-ray burst association, but this can easily be due to a selection effect. However, the kinetic energies and ejected masses were found to be considerably higher, on average, than those of similar supernovae without a gamma-ray burst association.
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