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http://hdl.handle.net/20.500.12386/23336
Titolo: | Fermi Large Area Telescope Third Source Catalog | Autori: | Acero, F. Ackermann, M. Ajello, M. Albert, A. Atwood, W. B. Axelsson, M. Baldini, L. Ballet, J. Barbiellini, G. Bastieri, D. BELFIORE MONDONI, Andrea de Angelis, A. DeKlotz, M. de Palma, F. Desiante, R. Lott, B. Digel, S. W. Di Venere, L. Drell, P. S. Dubois, R. Dumora, D. Moskalenko, I. V. Favuzzi, C. Fegan, S. J. Ferrara, E. C. Finke, J. Franckowiak, A. Lovellette, M. N. Fukazawa, Y. Funk, S. Fusco, P. Gargano, F. Murgia, S. Gasparrini, D. Giebels, B. Giglietto, N. Giommi, P. Giordano, F. GIROLETTI, MARCELLO Lubrano, P. Glanzman, T. Godfrey, G. Grenier, I. A. Nuss, E. Grondin, M. -H. Grove, J. E. Guillemot, L. Guiriec, S. Hadasch, D. Harding, A. K. Hays, E. Madejski, G. M. Hewitt, J. W. Hill, A. B. Ohno, M. Horan, D. IAFRATE, Giulia Jogler, T. Jóhannesson, G. Johnson, R. P. Johnson, A. S. Johnson, T. J. Johnson, W. N. MASSARO, Francesco Kamae, T. Bissaldi, E. Kataoka, J. Katsuta, J. Kuss, M. La Mura, G. Landriu, D. Larsson, S. Latronico, L. Lemoine-Goumard, M. Li, J. Mayer, M. Ohsugi, T. Li, L. Longo, F. Mazziotta, M. N. McEnery, J. E. Michelson, P. F. Bellazzini, R. Mirabal, N. Mizuno, T. Moiseev, A. A. Mongelli, M. Omodei, N. Monzani, M. E. Morselli, A. ORIENTI, Monica Orlando, E. Ormes, J. F. Caraveo, Patrizia Paneque, D. Panetta, J. H. Perkins, J. S. Pesce-Rollins, M. Piron, F. Blandford, R. D. Pivato, G. Porter, T. A. Racusin, J. L. Rando, R. Casandjian, J. M. Razzano, M. Razzaque, S. Reimer, A. Reimer, O. Reposeur, T. Rochester, L. S. Bloom, E. D. Romani, R. W. Salvetti, D. Sánchez-Conde, M. Cavazzuti, E. Saz Parkinson, P. M. Schulz, A. Siskind, E. J. Smith, D. A. Spada, F. Spandre, G. Spinelli, P. Bogart, J. R. Stephens, T. E. Strong, A. W. Charles, E. Suson, D. J. Takahashi, H. Takahashi, T. Tanaka, Y. Thayer, J. G. Thayer, J. B. Thompson, D. J. Tibaldo, L. Bonino, R. Tibolla, O. Chaves, R. C. G. Torres, D. F. TORRESI, ELEONORA Tosti, G. Troja, E. Van Klaveren, B. Vianello, G. Winer, B. L. Wood, K. S. Wood, M. Bottacini, E. Chekhtman, A. Zimmer, S. Fermi-LAT Collaboration Bregeon, J. Britto, R. J. Bruel, P. Buehler, R. Burnett, T. H. Buson, S. Caliandro, G. A. Cameron, R. A. Cheung, C. C. Caputo, R. Caragiulo, M. Chiang, J. Chiaro, G. Ciprini, S. Loparco, F. Claus, R. Cohen-Tanugi, J. Cominsky, L. R. Conrad, J. Cutini, S. D'AMMANDO, FILIPPO |
Data pubblicazione: | 2015 | Rivista: | THE ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | Numero: | 218 | Fascicolo: | 2 | Da pagina:: | 23 | Abstract: | We present the third Fermi Large Area Telescope (LAT) source catalog (3FGL) of sources in the 100 MeV-300 GeV range. Based on the first 4 yr of science data from the Fermi Gamma-ray Space Telescope mission, it is the deepest yet in this energy range. Relative to the Second Fermi LAT catalog, the 3FGL catalog incorporates twice as much data, as well as a number of analysis improvements, including improved calibrations at the event reconstruction level, an updated model for Galactic diffuse γ-ray emission, a refined procedure for source detection, and improved methods for associating LAT sources with potential counterparts at other wavelengths. The 3FGL catalog includes 3033 sources above 4σ significance, with source location regions, spectral properties, and monthly light curves for each. Of these, 78 are flagged as potentially being due to imperfections in the model for Galactic diffuse emission. Twenty-five sources are modeled explicitly as spatially extended, and overall 238 sources are considered as identified based on angular extent or correlated variability (periodic or otherwise) observed at other wavelengths. For 1010 sources we have not found plausible counterparts at other wavelengths. More than 1100 of the identified or associated sources are active galaxies of the blazar class; several other classes of non-blazar active galaxies are also represented in the 3FGL. Pulsars represent the largest Galactic source class. From source counts of Galactic sources we estimate that the contribution of unresolved sources to the Galactic diffuse emission is ̃3% at 1 GeV. | Acknowledgments: | The Fermi -LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT, as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States; the Commissariat à l’Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucléaire et de Physique des Particules in France; the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy; the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan; and the K. A. Wallenberg Foundation, the Swedish Research Council, and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Études Spatiales in France. This work made extensive use of the ATNF pulsar catalog 98 98 http://www.atnf.csiro.au/research/pulsar/psrcat (Manchester et al. 2005 ). This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration, and of archival data, software, and online services provided by the ASI Science Data Center (ASDC), operated by the Italian Space Agency. This research has made use of Aladin, 99 99 http://aladin.u-strasbg.fr/ TOPCAT 100 100 http://www.star.bristol.ac.uk/mbt/topcat/ and APLpy, an open-source plotting package for Python. 101 101 http://aplpy.github.com The authors acknowledge the use of HEALPix 102 102 http://healpix.jpl.nasa.gov/ (Górski et al. 2005 ). Facilities: Fermi . | URI: | http://hdl.handle.net/20.500.12386/23336 | URL: | https://iopscience.iop.org/article/10.1088/0067-0049/218/2/23 | ISSN: | 0067-0049 | DOI: | 10.1088/0067-0049/218/2/23 | Bibcode ADS: | 2015ApJS..218...23A | Fulltext: | open |
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