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<i>FERMI</i> LARGE AREA TELESCOPE SECOND SOURCE CATALOG

The Astrophysical Journal Supplement Series · 2012 · Vol. 199(2) · pp. 31–31

P. L. Nolan(Kavli Institute for Particle Astrophysics and Cosmology)A. A. Abdo(George Mason University)M. Ackermann(Deutsches Elektronen-Synchrotron DESY)M. Ajello(Stanford University)A. Allafort(SLAC National Accelerator Laboratory)E. Antolini(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia)W. B. Atwood(University of California, Santa Cruz)M. Axelsson(Fraunhofer Chalmers Research Centre for Industrial Mathematics)L. Baldini(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)J. Ballet✉(Institut de Recherche sur les Lois Fondamentales de l'Univers)G. Barbiellini(Istituto Nazionale di Fisica Nucleare, Sezione di Trieste)D. Bastieri(Istituto Nazionale di Fisica Nucleare, Sezione di Padova)K. Bechtol(SLAC National Accelerator Laboratory)A. Belfiore(Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano)R. Bellazzini(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)B. Berenji(Kavli Institute for Particle Astrophysics and Cosmology)G. F. Bignami(Istituto Universitario di Studi Superiori di Pavia)R. D. Blandford(SLAC National Accelerator Laboratory)E. D. Bloom(Stanford University)E. Bonamente(University of Perugia)J. T. Bonnell(University of Maryland, College Park)A. W. Borgland(Kavli Institute for Particle Astrophysics and Cosmology)E. Bottacini(SLAC National Accelerator Laboratory)A. Bouvier(University of California, Santa Cruz)T. J. Brandt(Centre National de la Recherche Scientifique)J. Bregeon(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)M. Brigida(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)P. Bruel(Laboratoire Leprince-Ringuet)R. Buehler(Stanford University)T. H. Burnett✉(University of Washington)S. Buson(University of Padua)G. A. Caliandro(Institute of Space Sciences)R. A. Cameron(Stanford University)R. CampanaBeatriz Cañadas(Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata)A. Cannon(University College Dublin)P. A. Caraveo(Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano)J. M. Casandjian(Université Paris Cité)E. Cavazzuti(Agenzia Spaziale Italiana)M. Ceccanti(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)C. Cecchi(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia)Ö. Çelik✉(University of Maryland, Baltimore County)E. Charles(Kavli Institute for Particle Astrophysics and Cosmology)A. ChekhtmanC. C. Cheung(National Academy of Sciences)J. Chiang(Stanford University)R. Chipaux(Commissariat à l'Énergie Atomique et aux Énergies Alternatives)S. Ciprini(University of Perugia)R. Claus(Kavli Institute for Particle Astrophysics and Cosmology)J. Cohen-Tanugi(Laboratoire Univers et Particules de Montpellier)L. R. Cominsky(Sonoma State University)J. M. Conrad(Stockholm University)R. Corbet(Goddard Space Flight Center)S. Cutini(Agenzia Spaziale Italiana)F. D’Ammando(University of Palermo)David Davis(Goddard Space Flight Center)A. De Angelis(Istituto Nazionale di Fisica Nucleare, Sezione di Trieste)Megan E. DeCesar(University of Maryland, College Park)M. DeKlotz(Stellar Solutions (United States))A. De Luca(Istituto Universitario di Studi Superiori di Pavia)P. R. den Hartog(Kavli Institute for Particle Astrophysics and Cosmology)F. de Palma(Polytechnic University of Bari)C. D. Dermer(United States Naval Research Laboratory)S. W. Digel✉(SLAC National Accelerator Laboratory)E. do Couto e Silva(Stanford University)P. S. Drell(SLAC National Accelerator Laboratory)A. Drlica-Wagner(SLAC National Accelerator Laboratory)R. Dubois(Kavli Institute for Particle Astrophysics and Cosmology)D. Dumora(Centre National de la Recherche Scientifique)Teruaki Enoto(Kavli Institute for Particle Astrophysics and Cosmology)L. Escande(Laboratoire de Physique des deux infinis Bordeaux)D. Fabiani(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)L. Falletti(Institut National de Physique Nucléaire et de Physique des Particules)C. Favuzzi(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)S. Fegan(École Polytechnique)E. C. Ferrara(Goddard Space Flight Center)W. B. Focke(Stanford University)P. Fortin(École Polytechnique)M. Frailis(Trieste Astronomical Observatory)Y. Fukazawa(Hiroshima University)S. Funk(SLAC National Accelerator Laboratory)P. Fusco(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)F. Gargano(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)D. Gasparrini(Agenzia Spaziale Italiana)N. Gehrels✉(Goddard Space Flight Center)S. Germani(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia)B. Giebels(Laboratoire Leprince-Ringuet)N. Giglietto✉(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)P. Giommi(Agenzia Spaziale Italiana)F. Giordano(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)M. Giroletti(Istituto di Radioastronomia di Bologna)T. Glanzman(Stanford University)G. Godfrey(SLAC National Accelerator Laboratory)I. A. Grenier(Université Paris Cité)M.-H. Grondin(Heidelberg University)J. E. Grove(United States Naval Research Laboratory)L. Guillemot(Max Planck Institute for Radio Astronomy)S. Guiriec(University of Alabama in Huntsville)M. Gustafsson(Istituto Nazionale di Fisica Nucleare, Sezione di Padova)D. Hadasch(Institute of Space Sciences)Y. Hanabata(Hiroshima University)A. K. Harding(Goddard Space Flight Center)M. Hayashida(Stanford University)E. Hays(Goddard Space Flight Center)A. B. Hill(University of Southampton)D. Horan(Laboratoire Leprince-Ringuet)X. T. Hou(Centre National de la Recherche Scientifique)R. E. Hughes(The Ohio State University)G. Iafrate(Istituto Nazionale di Fisica Nucleare, Sezione di Trieste)R. Itoh(Hiroshima University)G. Jóhannesson(University of Iceland)R. P. Johnson(University of California, Santa Cruz)Thomas E. Johnson(Goddard Space Flight Center)A. S. Johnson(SLAC National Accelerator Laboratory)T. J. Johnson(National Academy of Sciences)T. Kamae(Kavli Institute for Particle Astrophysics and Cosmology)H. Katagiri(Ibaraki University)J. Kataoka(Waseda University)J. Katsuta(Stanford University)N. Kawai✉(Tokyo Institute of Technology)M. Kerr(Stanford University)J. Knödlseder(Université Toulouse III - Paul Sabatier)D. Kocevski(Kavli Institute for Particle Astrophysics and Cosmology)M. Kuss(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)J. Landé(SLAC National Accelerator Laboratory)D. Landriu(Commissariat à l'Énergie Atomique et aux Énergies Alternatives)L. Latronico(Istituto Nazionale di Fisica Nucleare, Sezione di Torino)M. Lemoine‐Goumard(Laboratoire de Physique des deux infinis Bordeaux)Andrea Lionetto(University of Rome Tor Vergata)M. Llena Garde(Stockholm University)F. Longo(Istituto Nazionale di Fisica Nucleare, Sezione di Trieste)F. Loparco(Polytechnic University of Bari)B. Lott(Laboratoire de Physique des deux infinis Bordeaux)M. N. Lovellette✉(United States Naval Research Laboratory)P. Lubrano(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia)G. Madejski(SLAC National Accelerator Laboratory)M. Marelli(Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano)E. Massaro(Sapienza University of Rome)M. N. Mazziotta✉(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)W. McConville(University of Maryland, College Park)J. E. McEnery(Goddard Space Flight Center)J. Méhault(Centre National de la Recherche Scientifique)P. F. Michelson(Stanford University)M. Minuti(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)W. Mitthumsiri(Kavli Institute for Particle Astrophysics and Cosmology)Tsunefumi Mizuno(Hiroshima University)A. A. Moiseev(University of Maryland, College Park)M. Mongelli(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)C. Monte(Polytechnic University of Bari)M. E. Monzani(SLAC National Accelerator Laboratory)A. Morselli(Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata)I. V. Moskalenko(Stanford University)S. Murgia(SLAC National Accelerator Laboratory)Takeshi Nakamori(Waseda University)M. Naumann-Godó(Université Paris Cité)J. P. Norris(Boise State University)E. Nuss(Laboratoire Univers et Particules de Montpellier)T. Nymark(AlbaNova)M. Ohno(Institute of Space and Astronautical Science)T. Ohsugi(Hiroshima University)A. Okumura(SLAC National Accelerator Laboratory)N. Omodei✉(Stanford University)E. Orlando(Max Planck Institute for Extraterrestrial Physics)J. F. Ormes(University of Denver)Masanori Ozaki(Institute of Space and Astronautical Science)D. Paneque(Kavli Institute for Particle Astrophysics and Cosmology)J. Panetta(Stanford University)D. Parent(George Mason University)J. S. Perkins(Center for Astrophysics Harvard & Smithsonian)M. Pesce-Rollins(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)M. Pierbattista(Institut de Recherche sur les Lois Fondamentales de l'Univers)Michele Pinchera(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)F. Piron(Institut National de Physique Nucléaire et de Physique des Particules)G. Pivato(University of Padua)T. A. Porter(Stanford University)J. L. Racusin(Goddard Space Flight Center)S. Rainò(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)R. Rando(Istituto Nazionale di Fisica Nucleare, Sezione di Padova)M. Razzano(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)S. Razzaque(George Mason University)A. Reimer(Stanford University)O. Reimer✉(Kavli Institute for Particle Astrophysics and Cosmology)T. Reposeur(Laboratoire de Physique des deux infinis Bordeaux)S. Ritz(University of California, Santa Cruz)Lynn Rochester(Kavli Institute for Particle Astrophysics and Cosmology)Roger W. Romani(SLAC National Accelerator Laboratory)M. Roth(University of Washington)Romain Rousseau(Centre National de la Recherche Scientifique)F. Ryde(Fraunhofer Chalmers Research Centre for Industrial Mathematics)H. F-W. Sadrozinski(University of California, Santa Cruz)D. Salvetti(Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano)D. A. Sanchez⋆(Max Planck Institute for Nuclear Physics)P. M. Saz Parkinson(University of California, Santa Cruz)C. Sbarra(Istituto Nazionale di Fisica Nucleare, Sezione di Padova)J. D. Scargle(Ames Research Center)T. Schalk(University of California, Santa Cruz)C. Sgrò(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)M. S. Shaw(SLAC National Accelerator Laboratory)C. R. Shrader(Goddard Space Flight Center)E. J. Siskind(Real Time Tomography (United States))D. A. Smith(Centre National de la Recherche Scientifique)G. Spandre(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)P. Spinelli(Istituto Nazionale di Fisica Nucleare, Sezione di Bari)T. E. Stephens(Wyle (United States))M. S. Strickman(United States Naval Research Laboratory)D. J. Suson(Purdue University Northwest)H. Tajima(Kavli Institute for Particle Astrophysics and Cosmology)H. Takahashi(Hiroshima University)T. Takahashi(Institute of Space and Astronautical Science)Takaaki Tanaka(SLAC National Accelerator Laboratory)J. G. Thayer(SLAC National Accelerator Laboratory)J. B. Thayer(Stanford University)D. J. Thompson(Goddard Space Flight Center)L. Tibaldo(University of Padua)O. Tibolla✉(University of Würzburg)F. Tinebra(Sapienza University of Rome)M. Tinivella(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa)D. F. Torres(Institució Catalana de Recerca i Estudis Avançats)G. Tosti(University of Perugia)E. Troja(Goddard Space Flight Center)Y. Uchiyama(Kavli Institute for Particle Astrophysics and Cosmology)J. Vandenbroucke(Stanford University)A. Van Etten(Kavli Institute for Particle Astrophysics and Cosmology)B. Van Klaveren(Kavli Institute for Particle Astrophysics and Cosmology)V. Vasileiou(Université de Montpellier)G. Vianello(Consorzio Interuniversitario Fisica Spaziale)V. Vitale(University of Rome Tor Vergata)A. P. Waite(Stanford University)E. Wallace(University of Washington)P. Wang(Stanford University)M. W. Werner(Universität Innsbruck)B. L. Winer(The Ohio State University)D. L. Wood(Praxis (United States))K. S. Wood(United States Naval Research Laboratory)M. Wood(Stanford University)Z. Yang(AlbaNova)S. Zimmer(AlbaNova)

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Abstract

We present the second catalog of high-energy γ-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi), derived from data taken during the first 24months of the science phase of the mission, which began on 2008 August 4. Source detection is based on the average flux over the 24month period. The second Fermi-LAT catalog (2FGL) includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and spectral fits in terms of power-law, exponentially cutoff power-law, or log-normal forms. Also included are flux measurements in five energy bands and light curves on monthly intervals for each source. Twelve sources in the catalog are modeled as spatially extended. We provide a detailed comparison of the results from this catalog with those from the first Fermi-LAT catalog (1FGL). Although the diffuse Galactic and isotropic models used in the 2FGL analysis are improved compared to the 1FGL catalog, we attach caution flags to 162 of the sources to indicate possible confusion with residual imperfections in the diffuse model. The 2FGL catalog contains 1873 sources detected and characterized in the 100MeV to 100GeV range of which we consider 127 as being firmly identified and 1171 as being reliably associated with counterparts of known or likely γ-ray-producing source classes. © 2012 The American Astronomical Society. All rights reserved.

Astrophysics and Cosmic Phenomena Gamma-ray bursts and supernovae Dark Matter and Cosmic PhenomenaPhysicsFermi Gamma-ray Space TelescopeAstrophysicsTelescopeFlux (metallurgy)Spitzer Space TelescopeAstronomyConfusionPoint sourcePower law

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