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Author Ackermann, M. ♦ Buehler, R. ♦ Ajello, M. ♦ Baldini, L. ♦ Ballet, J. ♦ Barbiellini, G. ♦ Bastieri, D. ♦ Bellazzini, R. ♦ Bissaldi, E. ♦ Caragiulo, M. ♦ Bloom, E. D. ♦ Bottacini, E. ♦ Cameron, R. A. ♦ Bonino, R. ♦ Brandt, T. J. ♦ Castro, D. ♦ Bregeon, J. ♦ Bruel, P. ♦ Caraveo, P. A. ♦ Cavazzuti, E.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ CATALOGS ♦ COSMIC GAMMA SOURCES ♦ DETECTION ♦ GALAXIES ♦ GAMMA RADIATION ♦ GEV RANGE 01-10 ♦ TELESCOPES ♦ TEV RANGE
Abstract The spatial extension of a γ -ray source is an essential ingredient to determine its spectral properties, as well as its potential multiwavelength counterpart. The capability to spatially resolve γ -ray sources is greatly improved by the newly delivered Fermi -Large Area Telescope (LAT) Pass 8 event-level analysis, which provides a greater acceptance and an improved point-spread function, two crucial factors for the detection of extended sources. Here, we present a complete search for extended sources located within 7° from the Galactic plane, using 6 yr of Fermi -LAT data above 10 GeV. We find 46 extended sources and provide their morphological and spectral characteristics. This constitutes the first catalog of hard Fermi -LAT extended sources, named the Fermi Galactic Extended Source Catalog, which allows a thorough study of the properties of the Galactic plane in the sub-TeV domain.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 2017-07-10
Publisher Place United States
Journal Astrophysical Journal
Volume Number 843
Issue Number 2


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