Discovery of a gamma-ray burst with an associated supernova

Дата и время публикации : 2011-04-15T15:17:50Z

Авторы публикации и институты :
Rhaana L. C. Starling (University of Leicester)
Klaas Wiersema (University of Leicester)
Andrew Levan (University of Warwick)

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 7 pages, 4 figures, accepted for publication in Proceedings of Science, 8th INTEGRAL Workshop, The Restless Gamma-ray Universe, 27-30 September 2010, Dublin, Ireland
Первичная категория: astro-ph.HE

Все категории : astro-ph.HE, astro-ph.CO

Краткий обзор статьи: We report the discovery of the nearby long, soft GRB 100316D, and the subsequent unveiling of its host galaxy and associated supernova. We study the extremely unusual prompt emission with time-resolved gamma-ray to X-ray spectroscopy and find that a thermal component in addition to the synchrotron spectrum is required. The host galaxy is a bright, blue galaxy with a highly disturbed morphology. From optical photometry and spectroscopy we provide an accurate astrometry and redshift, and derive the key host properties of star formation rate and stellar age. We compare our findings for this GRB-SN with the well known previous case of GRB 060218. GRB 100316D is an important addition to the current sparse sample of spectroscopically confirmed GRB-SNe, from which a better understanding of long GRB progenitors and the GRB-SN connection can be gleaned.

Category: Physics