GLAST Prospects for Swift-Era Afterglows
Abstract
We calculate the GeV spectra of gamma-ray burst afterglows produced by inverse Compton scattering of these objects' sub-MeV emission. We improve on earlier treatments by using refined afterglow parameters and new model developments motivated by recent Swift observations. We present time-dependent GeV spectra for standard, constant-parameter models, as well as for models with energy injection and with time-varying parameters, for a range of burst parameters. We evaluate the limiting redshift to which such afterglows can be detected by the GLAST Large Area Telescope, as well as by AGILE.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 2007
- DOI:
- 10.1086/521045
- arXiv:
- arXiv:0705.1545
- Bibcode:
- 2007ApJ...668..392G
- Keywords:
-
- Gamma Rays: Bursts;
- Radiation Mechanisms: Nonthermal;
- Astrophysics
- E-Print:
- 19 pages, 5 figures, ApJ, in press