Kelly 2007 Long GRBs and SNe Ic have similar galactic environment

主要内容:
Using SDSS data, they found long GRBs and SNe distribute in the same region of galaxies: the brightest region.

精彩摘抄:


文章信息:

arXiv:0712.0430 [ps, pdf, other]

Title: Long Gamma-Ray Bursts and Type Ic Core Collapse Supernovae Have Similar Environments

Authors: P. L. Kelly (1 and 2), R. P. Kirshner (2), M. Pahre (2) ((1) Stanford University, (2) CfA)

Comments: 11 pages, 4 figures, 2 tables

Subjects: Astrophysics (astro-ph)

When the afterglow fades at the site of a long-duration gamma-ray burst (LGRB), Type Ic supernovae (SN Ic) are the only type of core collapse supernova observed. Recent work found that a sample of LGRB had different environments from a collection of core-collapse supernovae identified in a high-redshift sample from colors and light curves. LGRB were in the brightest regions of their hosts, but the core-collapse sample followed the overall distribution of the galaxy light. Here we examine 263 fully spectroscopically-typed supernovae found in nearby (z <>