{ "id": "1308.0846", "version": "v2", "published": "2013-08-04T20:23:54.000Z", "updated": "2013-08-06T07:43:49.000Z", "title": "Studying the Supernova Remnant G31.9+0.0 in Gamma and X-Rays", "authors": [ "T. Ergin", "A. Sezer", "L. Saha", "P. Majumdar", "E. N. Ercan" ], "comment": "In Proceedings of the 33rd International Cosmic Ray Conference (ICRC2013), Rio de Janeiro (Brazil)", "categories": [ "astro-ph.HE" ], "abstract": "G31.9+0.0 (3C 391) is a Galactic mixed-morphology supernova remnant observed in GeV gamma rays by Fermi Gamma Ray Space Telescope's LAT (Fermi-LAT), as well as in the 0.3-10 keV X-ray band by Suzaku. In this paper, we will present the analysis results of X- and gamma-ray data of 3C 391 taken with Suzaku and Fermi-LAT. The X-ray spectrum of 3C 391 was fitted to a single-temperature variable abundance non-equilibrium ionization model with an electron temperature of kTe ~ 0.57 keV, an absorbing column density of NH ~ 3.1 x 10^{22} cm^{-2} and a very high ionization age (\\tau > 10^{12} cm^{-3} s), which suggest that the plasma has reached ionization equilibrium. The spectrum shows clearly detected emission lines of Mg, Si, and S. 3C 391 was detected in GeV gamma rays with a significance of ~ 13 sigma. The spectrum was fitted with a log-parabola function, where the spectral index and beta parameters were found to be \\alpha = 2.35 +- 0.07 and \\beta = 0.366 +- 0.339. The integrated flux above 200 MeV was found as F = (2.34 +- 0.37) x 10^{-8} ph cm^{-2} s^{-1}. These results are in agreement with the Fermi-LAT results given in the 2nd Fermi-LAT catalog.", "revisions": [ { "version": "v2", "updated": "2013-08-06T07:43:49.000Z" } ], "analyses": { "keywords": [ "supernova remnant", "abundance non-equilibrium ionization model", "variable abundance non-equilibrium ionization", "gev gamma rays", "gamma ray space telescopes lat" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1246315, "adsabs": "2013arXiv1308.0846E" } } }