Long Gamma-Ray Bursts Trace the Star Formation History
Abstract
We show that if the broad-line supernova explosions of Type Ic (SNeIc) produce the bulk of the observed long duration gamma-ray bursts (LGRBs), including high- and low-luminosity LGRBs and X-ray flashes, and if the LGRBs have the geometry assumed in the cannonball model of LGRBs, then their rate, measured by Swift, and their redshift distribution are consistent with the star formation rate (SFR) over the entire range of redshifts where the SFR has been measured with sufficient accuracy.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 2014
- DOI:
- 10.1088/0004-637X/785/1/70
- arXiv:
- arXiv:1307.5556
- Bibcode:
- 2014ApJ...785...70D
- Keywords:
-
- gamma-ray burst: general;
- supernovae: general;
- Astrophysics - Cosmology and Nongalactic Astrophysics;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- Expanded version, 21 pages, 9 figures. Submitted to ApJ