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arXiv · 0706.0674

The spatially resolved host of GRB 060505 and implications for the nature of the progenitor

Christina C. Thoene·Johan P. U. Fynbo
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Abstract

We present a study of the host galaxy of the Gamma-Ray Burst (GRB) of May 5 2006 (GRB 060505). The host is spatially resolved in both imaging data and in a long slit spectrum including the GRB site. We find the galaxy to be a Sbc spiral, which is unusual for a long GRB host galaxy. The site of the GRB is considerably different from the rest of the galaxy with intense star formation, low metallicity and a young age. This suggest a massive stellar progenitor rather than a merger of compact objects which has been suggested based on the the relatively short duration of T_90=4s for the prompt emission.

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Christina C. Thoene, Johan P. U. Fynbo. 2007-06-05. The spatially resolved host of GRB 060505 and implications for the nature of the progenitor. https://arxiv.org/abs/0706.0674

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