We present a systematic study of the TeV gamma-ray spectrum for the sources in the 2HWC HAWC catalog. Three spectrum models are considered in the analysis: simple power law, power law with exponential cut-off and a log-parabola. A comparison of the test statistic of nested models was performed in order to look for the best description. We used gamma-ray sky maps of 17 and 25 months of HAWC data. From the analysis, only three sources of the catalog deviate from simple power law spectrum with high significance. The corresponding parameters are given in each case.
@article{arxiv.1708.09411,
title = {On the TeV spectral energy distribution of HAWC's sources},
author = {Filiberto Hueyotl-Zahuantitla and César Álvarez and Roberto Arceo and Karen Salomé Caballero},
journal= {arXiv preprint arXiv:1708.09411},
year = {2017}
}
Comments
Presented at the 35th International Cosmic Ray Conference (ICRC2017), Bexco, Busan, Korea. See arXiv:1708.02572 for all HAWC contributions