On the nature of nearby GRB/SN host galaxies

Details On the nature of nearby GRB/SN host galaxies On the nature of nearby GRB/SN host galaxies

2005-06-28

arxiv.org/abs/astro-ph/0506686v1

New Astron. 11 (2005) 103-115

Astronomy and Astrophysics

Astrophysics

To be published in New Astronomy

Scientific paper

10.1016/j.newast.2005.06.004

We present and discuss optical diagnostics of the low redshift (z<0.2) galaxies that are known to have hosted supernovae associated with gamma-ray bursts (GRBs). The three galaxies are all actively starforming sub-luminous (L 30 Msun. These three host galaxies have global properties (luminosities, SFR, SSFR, metallicity, colour, reddening) that resemble those of more distant GRB host galaxies. We also compare the host galaxies with a sample of Blue Compact Galaxies (BCGs) in the local universe, and show that these samples have similar properties.

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