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 studyAuthors: R. Margutti, G. Chincarini, S. Covino, G. Tagliaferri, S. Campana, M. Della Valle, A. V. Filippenko, F. Fiore, R. Foley, D. Fugazza, P. Giommi, D. Malesani, A. Moretti, L. StellaComments: 12 pages, 10 figures. Accepted by A&ASubjects: 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.">
Labels: 1.c. 031203, 4.6 host galaxy
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