Spectro-photometric study of the GRB 030329 host galaxy
Abstract
In this study optical/near-infrared(NIR) broad band photometry and optical spectroscopic observations of the GRB 030329 host galaxy are presented. The Spectral Energy Distribution (SED) of the host is consistent with a starburst galaxy template with a dominant stellar population age of ~150 Myr and an extinction Av ~0.6. Analysis of the spectral emission lines shows that the host is likely a low metallicity galaxy. Two independent diagnostics, based on the restframe UV continuum and the [OII] line flux, provide a consistent unextincted star formation rate of SFR ~0.6 Mo yr^-1. The low absolute magnitude of the host (M_B ~ -16.5) implies a high specific star formation rate value, SSFR = ~34 Mo yr^-1 (L/L*)^-1.
Cite
@article{arxiv.astro-ph/0508541,
title = {Spectro-photometric study of the GRB 030329 host galaxy},
author = {J. Gorosabel and D. Perez-Ramirez and J. Sollerman and A. de Ugarte Postigo and J. P. U. Fynbo and A. J. Castro-Tirado and P. Jakobsson and L. Christensen and J. Hjorth and G. Johannesson and S. Guziy and J. M. Castro Cerón and G. Bjornsson and V. V. Sokolov and T. A. Fatkhullin and K. Nilsson},
journal= {arXiv preprint arXiv:astro-ph/0508541},
year = {2016}
}
Comments
4 pages, 2 figures, accepted for publication in Il nuovo cimento (4th Workshop Gamma-Ray Bursts in the Afterglow Era, Rome, 18-22 October 2004)