RHESSI Spectral Fits of Swift GRBs
Astrophysics
2009-06-23 v1
Abstract
One of the challenges of the Swift era has been accurately determining Epeak for the prompt GRB emission. RHESSI, which is sensitive from 30 keV to 17 MeV, can extend spectral coverage above the Swift-BAT bandpass. Using the public Swift data, we present results of joint spectral fits for 26 bursts co-observed by RHESSI and Swift-BAT through May 2007. We compare these fits to estimates of Epeak which rely on BAT data alone. A Bayesian Epeak estimator gives better correspondence with our measured results than an estimator relying on correlations with the Swift power law indices.
Keywords
Cite
@article{arxiv.0801.2417,
title = {RHESSI Spectral Fits of Swift GRBs},
author = {Eric C. Bellm and Mark E. Bandstra and Steven E. Boggs and Wojtek Hajdas and Kevin Hurley and David M. Smith and Claudia Wigger},
journal= {arXiv preprint arXiv:0801.2417},
year = {2009}
}
Comments
4 pages, 1 figure. To appear in the proceedings of Gamma Ray Bursts 2007, Santa Fe, New Mexico, November 5-9 2007