FERMI LARGE AREA TELESCOPE DETECTION OF A BREAK IN THE GAMMA-RAY SPECTRUM OF THE SUPERNOVA REMNANT CASSIOPEIA A
Yuan Y, Funk S, Johannesson G, Lande J, Tibaldo L, Uchiyama Y (2013)
Publication Status: Published
Publication Type: Journal article
Publication year: 2013
Journal
Publisher: American Astronomical Society
Book Volume: 779
DOI: 10.1088/0004-637X/779/2/117
Abstract
We report on observations of the supernova remnant Cassiopeia A in the energy range from 100 MeV to 100 GeV using 44 months of observations from the Large Area Telescope on board the Fermi Gamma-Ray Space Telescope. We perform a detailed spectral analysis of this source and report on a low-energy break in the spectrum at 1.72(-0.89)(+1.35) GeV. By comparing the results with models for the gamma-ray emission, we find that hadronic emission is preferred for the GeV energy range.
Authors with CRIS profile
Involved external institutions
Stanford University
United States (USA) (US)
University of Iceland (UI) / Háskóli Íslands
Iceland (IS)
United States (USA) (US)
University of Iceland (UI) / Háskóli Íslands
Iceland (IS)
How to cite
APA:
Yuan, Y., Funk, S., Johannesson, G., Lande, J., Tibaldo, L., & Uchiyama, Y. (2013). FERMI LARGE AREA TELESCOPE DETECTION OF A BREAK IN THE GAMMA-RAY SPECTRUM OF THE SUPERNOVA REMNANT CASSIOPEIA A. Astrophysical Journal, 779. https://doi.org/10.1088/0004-637X/779/2/117
MLA:
Yuan, Yajie, et al. "FERMI LARGE AREA TELESCOPE DETECTION OF A BREAK IN THE GAMMA-RAY SPECTRUM OF THE SUPERNOVA REMNANT CASSIOPEIA A." Astrophysical Journal 779 (2013).
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