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The First Fermi-LAT Catalog of Sources Above 10 GeVWe present a catalog of gamma-ray sources at energies above 10 GeV based on data from the Large Area Telescope (LAT) accumulated during the first 3 yr of the Fermi Gamma-ray Space Telescope mission. The first Fermi-LAT catalog of >10 GeV sources (1FHL) has 514 sources. For each source we present location, spectrum, a measure of variability, and associations with cataloged sources at other wavelengths. We found that 449 (87%) could be associated with known sources, of which 393 (76% of the 1FHL sources) are active galactic nuclei. Of the 27 sources associated with known pulsars, we find 20 (12) to have significant pulsations in the range >10 GeV (>25 GeV). In this work we also report that, at energies above 10 GeV, unresolved sources account for 27% +/- 8% of the isotropic γ -ray background, while the unresolved Galactic population contributes only at the few percent level to the Galactic diffuse background. We also highlight the subset of the 1FHL sources that are best candidates for detection at energies above 50-100 GeV with current and future ground-based γ -ray observatories.
Document ID
20160005333
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Ackermann, M.
(Deutsches Elektronen-Synchrotron Zeuthen, Germany)
Ajello, M.
(California Univ. Berkeley, CA, United States)
Allafort, A.
(Stanford Univ. Stanford, CA, United States)
Atwood, W. B.
(California Univ. Santa Cruz, CA, United States)
Baldini, L.
(Pisa Univ. Italy)
Ballet, J.
(Universite Paris Diderot Paris, France)
Barbiellini, G.
(Istituto Nazionale di Fisica Nucleare Trieste, Italy)
Bastieri, D.
(Istituto Nazionale di Fisica Nucleare Padova, Italy)
Bechtol, K.
(Stanford Univ. Stanford, CA, United States)
Moiseev, Alexander A.
(Maryland Univ. College Park, MD, United States)
Date Acquired
April 26, 2016
Publication Date
November 14, 2013
Publication Information
Publication: The Astrophysical Journal Supplement Series
Publisher: NA
Volume: 209
Issue: 2
e-ISSN: 1538-4365
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN14694
Funding Number(s)
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Other
Keywords
catalogs
rays: general
gamma

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