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.

星期一, 九月 03, 2007

Margutti 2007 GRB 031203的宿主星系

主要内容:
GRB 031203的宿主星系就叫HG031203。分析了它的光谱,作为WR星系的可能性等。

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文章信息:

arXiv:0709.0198 [ps, pdf, other]
Title: The host galaxy of GRB031203: a new spectroscopic study
Comments: 12 pages, 10 figures. Accepted by A&A
Subjects: Astrophysics (astro-ph)

The host galaxy of the long-duration gamma-ray burst (GRB) 031203 (HG031203) offers a precious opportunity to study in detail the environment of a nearby GRB. The aim is to better characterize this galaxy and analyse the possible evolution with time of the spectroscopic quantities we derive. We analyse HG031203 using a set of optical spectra acquired with the ESO-VLT and Keck telescope. We compare the metallicity, luminosity and star formation properties of this galaxy and of the other supernova-long gamma-ray burst hosts in the local universe (z<0.2) z="0.1055.">

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