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Detection of gamma-ray emission from the starburst galaxies m82 and ngc 253 with the large area telescope on fermi

  • A. A. Abdo
  • , M. Ackermann
  • , M. Ajello
  • , W. B. Atwood
  • , M. Axelsson
  • , L. Baldini
  • , J. Ballet
  • , G. Barbiellini
  • , D. Bastieri
  • , K. Bechtol
  • , R. Bellazzini
  • , B. Berenji
  • , E. D. Bloom
  • , E. Bonamente
  • , A. W. Borgland
  • , J. Bregeon
  • , A. Brez
  • , M. Brigida
  • , P. Bruel
  • , T. H. Burnett
  • G. A. Caliandro, R. A. Cameron, P. A. Caraveo, J. M. Casandjian, E. Cavazzuti, C. Cecchi, O. Çelik, E. Charles, A. Chekhtman, C. C. Cheung, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, C. D. Dermer, A. Deangelis, F. De Palma, S. W. Digel, E. Do Couto E Silva, P. S. Drell, A. Drlica-Wagner, R. Dubois, D. Dumora, C. Farnier, C. Favuzzi, S. J. Fegan, W. B. Focke, L. Foschini, M. Frailis, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, B. Giebels, N. Giglietto, F. Giordano, T. Glanzman, G. Godfrey, I. A. Grenier, M. H. Grondin, J. E. Grove, L. Guillemot, S. Guiriec, Y. Hanabata, A. K. Harding, M. Hayashida, E. Hays, R. E. Hughes, G. Jóhannesson, A. S. Johnson, R. P. Johnson, W. N. Johnson, T. Kamae, H. Katagiri, J. Kataoka, N. Kawai, M. Kerr, J. Knödlseder, M. L. Kocian, M. Kuss, J. Lande, L. Latronico, M. Lemoine-Goumard, F. Longo, F. Loparco, B. Lott, M. N. Lovellette, P. Lubrano, G. M. Madejski, A. Makeev, M. N. Mazziotta, W. McConville, J. E. McEnery, C. Meurer, P. F. Michelson, W. Mitthumsiri, T. Mizuno, A. A. Moiseev, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko, S. Murgia, T. Nakamori, P. L. Nolan, J. P. Norris, E. Nuss, T. Ohsugi, N. Omodei, E. Orlando, J. F. Ormes, M. Ozaki, D. Paneque, J. H. Panetta, D. Parent, V. Pelassa, M. Pepe, M. Pesce-Rollins, F. Piron, T. A. Porter, S. Rainò, R. Rando, M. Razzano, A. Reimer, O. Reimer, T. Reposeur, S. Ritz, A. Y. Rodriguez, R. W. Romani, M. Roth, F. Ryde, H. F.W. Sadrozinski, A. Sander, P. M. Saz Parkinson, J. D. Scargle, A. Sellerholm, C. Sgrò, M. S. Shaw, D. A. Smith, P. D. Smith, G. Spandre, P. Spinelli, M. S. Strickman, A. W. Strong, D. J. Suson, H. Takahashi, T. Tanaka, J. B. Thayer, J. G. Thayer, D. J. Thompson, L. Tibaldo, O. Tibolla, D. F. Torres, G. Tosti, A. Tramacere, Y. Uchiyama, T. L. Usher, V. Vasileiou, N. Vilchez, V. Vitale, A. P. Waite, P. Wang, B. L. Winer, K. S. Wood, T. Ylinen, M. Ziegler
  • Naval Research Laboratory
  • National Research Council
  • Stanford University
  • University of California at Santa Cruz
  • Stockholm University
  • Oskar Klein Centre
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
  • Universite Paris-Saclay
  • INFN Sezione di Trieste
  • University of Trieste
  • INFN
  • University of Padova
  • INFN Sezione di Perugia
  • University of Perugia
  • Politecnico di Bari
  • INFN Sezione di Bari
  • University of Washington
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Milan
  • Science and Research Directorate
  • NASA Goddard Space Flight Center
  • Biochemical and Environmental Engineering
  • George Mason University
  • Laboratoire Univers et Particules de Montpellier
  • KTH Royal Institute of Technology
  • Sezione di Roma
  • Univ. Bordeaux
  • Université Paris-Sud
  • INAF
  • Hiroshima University
  • University of Alabama in Huntsville
  • The Ohio State University
  • Tokyo Institute of Technology
  • Waseda University
  • RIKEN (The Institute of Physical and Chemical Research)
  • CNRS
  • University of Maryland, College Park
  • University of Denver
  • Max Planck Institut für Extraterrestrische Physik
  • ISAS/JAXA
  • Medical University of Innsbruck
  • University of São Paulo
  • NASA Ames Research Center
  • Purdue University Northwest
  • Max-Planck-Institut für Kernphysik
  • Pompeu Fabra University (UPF)
  • Consorzio Interuniversitario per la Fisica Spaziale (CIFS)
  • University of Rome “Tor Vergata”
  • University of Kalmar

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

We report the detection of high-energy γ-ray emission from two starburst galaxies using data obtained with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. Steady point-like emission above 200MeV has been detected at significance levels of 6.8σ and 4.8σ, respectively, from sources positionally coincident with locations of the starburst galaxies M82 and NGC 253. The total fluxes of the sources are consistent with γ-ray emission originating from the interaction of cosmic rays with local interstellar gas and radiation fields and constitute evidence for a link between massive star formation and γ-ray emission in star-forming galaxies.

langue originaleAnglais
Pages (de - à)L152-L157
journalAstrophysical Journal Letters
Volume709
Numéro de publication2 PART 2
Les DOIs
étatPublié - 1 janv. 2010

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