학술논문
SYNCHROTRON ORIGIN OF THE TYPICAL GRB BAND FUNCTION—A CASE STUDY OF GRB 130606B.
Document Type
Case Study
Source
Subject
*SPECTRUM analysis
*SYNCHROTRON radiation
*GAMMA ray bursts
*SYNCHROTRONS
*MAGNETIC flux density
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Language
ISSN
0004-637X
Abstract
We perform a time-resolved spectral analysis of GRB 130606B within the framework of a fast-cooling synchrotron radiation model with magnetic field strength in the emission region decaying with time, as proposed by Uhm & Zhang. The data from all time intervals can be successfully fit by the model. The same data can be equally well fit by the empirical Band function with typical parameter values. Our results, which involve only minimal physical assumptions, offer one natural solution to the origin of the observed GRB spectra and imply that, at least some, if not all, Band-like GRB spectra with typical Band parameter values can indeed be explained by synchrotron radiation. [ABSTRACT FROM AUTHOR]