Spectroscopical study of the host galaxy of GRB031203

R. Margutti*, C. Chincarini, D. Fugazza

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We revisit the host galaxy of GRB031203 using a set of spectra obtained with VLT. Assuming a galactic color excess E(B - V) = 0.72 mag in the direction of the burst, we derive an internal extinction of E(B - V)HG ≈ 0.4 mag. After correcting for reddening, we find an electronic density of (156 ± 21) cm-3 and a temperature of (12443 ± 95) K. With an ISM dominated by photo-ionization, we estimate a metallicity of 12 + log[O/H] = 8.12 ± 0.04 and a Star Formation Rate (SFR) of (12.3 ± 2.1) M y-1. This galaxy does not host a clearly detectable population of WR stars.

Original languageEnglish (US)
Pages (from-to)1513-1515
Number of pages3
JournalNuovo Cimento della Societa Italiana di Fisica B
Volume121
Issue number12
DOIs
StatePublished - Dec 1 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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