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3FHL: The Third Catalog of Hard Fermi-LAT Sources

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2017-10-01
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00670049
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10.3847/1538-4365/aa8221
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2-s2.0-85032822161
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Astrophysical Journal, Supplement Series. Vol.232, No.2 (2017)
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M. Ajello, W. B. Atwood, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, R. Bellazzini, E. Bissaldi, R. D. Blandford, E. D. Bloom, R. Bonino, J. Bregeon, R. J. Britto, P. Bruel, R. Buehler, S. Buson, R. A. Cameron, R. Caputo, M. Caragiulo, P. A. Caraveo, E. Cavazzuti, C. Cecchi, E. Charles, A. Chekhtman, C. C. Cheung, G. Chiaro, S. Ciprini, J. M. Cohen, D. Costantin, F. Costanza, A. Cuoco, S. Cutini, F. D'Ammando, F. De Palma, R. Desiante, S. W. Digel, N. Di Lalla, M. Di Mauro, L. Di Venere, A. Domnguez, P. S. Drell, D. Dumora, C. Favuzzi, S. J. Fegan, E. C. Ferrara, P. Fortin, A. Franckowiak, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Giglietto, P. Giommi, F. Giordano, M. Giroletti, T. Glanzman, D. Green, I. A. Grenier, M. H. Grondin, J. E. Grove, L. Guillemot, S. Guiriec, A. K. Harding, E. Hays, J. W. Hewitt, D. Horan, G. Jóhannesson, S. Kensei, M. Kuss, G. La Mura, S. Larsson, L. Latronico, M. Lemoine-Goumard, J. Li, F. Longo (2017). 3FHL: The Third Catalog of Hard Fermi-LAT Sources. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/42455.
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3FHL: The Third Catalog of Hard Fermi-LAT Sources
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Author(s)
M. Ajello
 W. B. Atwood
 L. Baldini
 J. Ballet
 G. Barbiellini
 D. Bastieri
 R. Bellazzini
 E. Bissaldi
 R. D. Blandford
 E. D. Bloom
 R. Bonino
 J. Bregeon
 R. J. Britto
 P. Bruel
 R. Buehler
 S. Buson
 R. A. Cameron
 R. Caputo
 M. Caragiulo
 P. A. Caraveo
 E. Cavazzuti
 C. Cecchi
 E. Charles
 A. Chekhtman
 C. C. Cheung
 G. Chiaro
 S. Ciprini
 J. M. Cohen
 D. Costantin
 F. Costanza
 A. Cuoco
 S. Cutini
 F. D'Ammando
 F. De Palma
 R. Desiante
 S. W. Digel
 N. Di Lalla
 M. Di Mauro
 L. Di Venere
 A. Domnguez
 P. S. Drell
 D. Dumora
 C. Favuzzi
 S. J. Fegan
 E. C. Ferrara
 P. Fortin
 A. Franckowiak
 Y. Fukazawa
 S. Funk
 P. Fusco
 F. Gargano
 D. Gasparrini
 N. Giglietto
 P. Giommi
 F. Giordano
 M. Giroletti
 T. Glanzman
 D. Green
 I. A. Grenier
 M. H. Grondin
 J. E. Grove
 L. Guillemot
 S. Guiriec
 A. K. Harding
 E. Hays
 J. W. Hewitt
 D. Horan
 G. Jóhannesson
 S. Kensei
 M. Kuss
 G. La Mura
 S. Larsson
 L. Latronico
 M. Lemoine-Goumard
 J. Li
 F. Longo
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Clemson University
 Santa Cruz Institute for Particle Physics
 Università di Pisa
 Universite Paris 7- Denis Diderot
 Istituto Nazionale di Fisica Nucleare, Roma
 Università degli Studi di Trieste
 Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
 Università degli Studi di Padova
 Istituto Nazionale Di Fisica Nucleare, Sezione di Pisa
 Università degli Studi di Bari
 Kavli Institute for Particle Astrophysics and Cosmology
 Università degli Studi di Torino
 Laboratoire Univers et Particules de Montpellier
 University of the Free State
 Laboratoire Leprince-Ringuet
 Deutsche Elektronen-Synchrotron
 NASA Goddard Space Flight Center
 INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Milan
 Agenzia Spaziale Italiana
 Università degli Studi di Perugia
 George Mason University, Fairfax Campus
 Naval Research Laboratory
 University of Maryland
 Rheinisch-Westfälische Technische Hochschule Aachen
 Istituto Di Radioastronomia, Bologna
 Alma Mater Studiorum Università di Bologna
 Università degli Studi di Napoli Federico II
 Università degli Studi di Udine
 Universidad Complutense de Madrid
 IN2P3 Institut National de Physique Nucleaire et de Physique des Particules
 Harvard-Smithsonian Center for Astrophysics
 Hiroshima University
 Erlangen Centre for Astroparticle Physics
 Universite d'Orleans
 Institut National des Sciences de l'Univers
 University of North Florida
 University Science Institute Reykjavik
 Nordisk Institut for Teoretisk Atomtysik
 The Royal Institute of Technology (KTH)
 Oskar Klein Centre for Cosmoparticle Physics
 Universitat Autònoma de Barcelona
 Stockholms universitet
 Mahidol University
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Abstract
© 2017. The American Astronomical Society. All rights reserved.. We present a catalog of sources detected above 10 GeV by the Fermi Large Area Telescope (LAT) in the first 7 years of data using the Pass 8 event-level analysis. This is the Third Catalog of Hard Fermi-LAT Sources (3FHL), containing 1556 objects characterized in the 10 GeV-2 TeV energy range. The sensitivity and angular resolution are improved by factors of 3 and 2 relative to the previous LAT catalog at the same energies (1FHL). The vast majority of detected sources (79%) are associated with extragalactic counterparts at other wavelengths, including 16 sources located at very high redshift (z > 2). Of the sources, 8% have Galactic counterparts and 13% are unassociated (or associated with a source of unknown nature). The high-latitude sky and the Galactic plane are observed with a flux sensitivity of 4.4 to 9.5 ×10-11 ph cm-2 s-1, respectively (this is approximately 0.5% and 1% of the Crab Nebula flux above 10 GeV). The catalog includes 214 new γ-ray sources. The substantial increase in the number of photons (more than 4 times relative to 1FHL and 10 times to 2FHL) also allows us to measure significant spectral curvature for 32 sources and find flux variability for 163 of them. Furthermore, we estimate that for the same flux limit of 10-12 erg cm-2 s-1, the energy range above 10 GeV has twice as many sources as the range above 50 GeV, highlighting the importance, for future Cherenkov telescopes, of lowering the energy threshold as much as possible.
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https://repository.li.mahidol.ac.th/handle/123456789/42455
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Scopus 2016-2017