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Gamma-ray emission concurrent with the nova in the symbiotic binary V407 cygni

  • A. A. Abdo
  • , M. Ackermann
  • , M. Ajello
  • , W. B. Atwood
  • , L. Baldini
  • , J. Ballet
  • , G. Barbiellini
  • , D. Bastieri
  • , K. Bechtol
  • , R. Bellazzini
  • , B. Berenji
  • , R. D. Blandford
  • , E. D. Bloom
  • , E. Bonamente
  • , A. W. Borgland
  • , A. Bouvier
  • , T. J. Brandt
  • , J. Bregeon
  • , A. Brez
  • , M. Brigida
  • P. Bruel, R. Buehler, T. H. Burnett, S. Buson, G. A. Caliandro, R. A. Cameron, P. A. Caraveo, S. Carrigan, J. M. Casandjian, C. Cecchi, Ö Çelik, E. Charles, S. Chaty, A. Chekhtman, C. C. Cheung, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, S. Corbel, R. Corbet, M. E. DeCesar, P. R. Den Hartog, C. D. Dermer, F. De Palma, S. W. Digel, D. Donato, E. Do Couto E Silva, P. S. Drell, R. Dubois, G. Dubus, D. Dumora, C. Favuzzi, S. J. Fegan, E. C. Ferrara, P. Fortin, M. Frailis, L. Fuhrmann, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, N. Giglietto, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, I. A. Grenier, M. H. Grondin, J. E. Grove, S. Guiriec, D. Hadasch, A. K. Harding, M. Hayashida, E. Hays, S. E. Healey, A. B. Hill, D. Horan, R. E. Hughes, R. Itoh, P. Jean, G. Jóhannesson, A. S. Johnson, R. P. Johnson, T. J. Johnson, W. N. Johnson, T. Kamae, H. Katagiri, J. Kataoka, M. Kerr, J. Knödlseder, E. Koerding, M. Kuss, J. Lande, L. Latronico, S. H. Lee, M. Lemoine-Goumard, M. Llena Garde, F. Longo, F. Loparco, B. Lott, M. N. Lovellette, P. Lubrano, A. Makeev, M. N. Mazziotta, W. McConville, J. E. McEnery, J. Mehault, P. F. Michelson, T. Mizuno, A. A. Moiseev, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko, S. Murgia, T. Nakamori, M. Naumann-Godo, I. Nestoras, P. L. Nolan, J. P. Norris, E. Nuss, M. Ohno, T. Ohsugi, A. Okumura, 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, P. S. Ray, M. Razzano, S. Razzaque, N. Rea, A. Reimer, O. Reimer, T. Reposeur, J. Ripken, S. Ritz, R. W. Romani, M. Roth, H. F.W. Sadrozinski, A. Sander, P. M. Saz Parkinson, J. D. Scargle, F. K. Schinzel, C. Sgrò, M. S. Shaw, E. J. Siskind, D. A. Smith, P. D. Smith, K. V. Sokolovsky, G. Spandre, P. Spinelli, Stawarz, M. S. Strickman, D. J. Suson, H. Takahashi, T. Takahashi, T. Tanaka, Y. Tanaka, J. B. Thayer, J. G. Thayer, D. J. Thompson, L. Tibaldo, D. F. Torres, G. Tosti, A. Tramacere, Y. Uchiyama, T. L. Usher, J. Vandenbroucke, V. Vasileiou, N. Vilchez, V. Vitale, A. P. Waite, E. Wallace, P. Wang, B. L. Winer, M. T. Wolff, K. S. Wood, Z. Yang, T. Ylinen, M. Ziegler, H. Maehara, K. Nishiyama, F. Kabashima, U. Bach, G. C. Bower, A. Falcone, J. R. Forster, A. Henden, K. S. Kawabata, P. Koubsky, K. Mukai, T. Nelson, S. R. Oates, K. Sakimoto, M. Sasada, V. I. Shenavrin, S. N. Shore, G. K. Skinner, J. Sokoloski, M. Stroh, A. M. Tatarnikov, M. Uemura, G. M. Wahlgren, M. Yamanaka
  • Naval Research Laboratory
  • National Research Council
  • Kavli Institute for Particle Astrophysics and Cosmology
  • University of California at Santa Cruz
  • 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
  • Centre national de la recherche scientifique
  • The Ohio State University
  • Politecnico di Bari
  • INFN Sezione di Bari
  • University of Washington
  • University of São Paulo
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Milan
  • NASA Goddard Space Flight Center
  • Biochemical and Environmental Engineering
  • George Mason University
  • Laboratoire Univers et Particules de Montpellier
  • Stockholm University
  • Oskar Klein Centre
  • Institut Universitaire de France
  • University of Maryland
  • LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
  • UMR 5797
  • Univ. Bordeaux
  • Ip Paris
  • and Physics University of Udine
  • INAF-Trieste
  • Max-Planck-Institut für Radioastronomie
  • Hiroshima University
  • Science and Research Directorate
  • Center for Space Plasma and Aeronomic Research
  • Pompeu Fabra University (UPF)
  • Sezione di Roma
  • Waseda University
  • University of Denver
  • ISAS/JAXA
  • Max Planck Institut für Extraterrestrische Physik
  • Medical University of Innsbruck
  • NASA Ames Research Center
  • Real-Time Computing Inc.
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • Jagiellonian University
  • Purdue University Northwest
  • Consorzio Interuniversitario per la Fisica Spaziale (CIFS)
  • University of Geneva
  • University of Rome “Tor Vergata”
  • KTH Royal Institute of Technology
  • University of Kalmar
  • Kyoto University
  • Miyaki-Argenteus Observatory
  • University of California, Berkeley
  • Pennsylvania State University
  • Hat Creek Observatory
  • American Association of Variable Star Observers
  • Astronomical Institute, Academy of Sciences of the Czech Republic v.v.i.
  • UCL Mullard Space Science Laboratory
  • Moscow State University
  • University of Pisa
  • Columbia University
  • Catholic University of America

Research output: Contribution to journalArticlepeer-review

239 Citations (Scopus)

Abstract

Novae are thermonuclear explosions on a white dwarf surface fueled by mass accreted from a companion star. Current physical models posit that shocked expanding gas from the nova shell can produce x-ray emission, but emission at higher energies has not been widely expected. Here, we report the Fermi Large Area Telescope detection of variable γ-ray emission (0.1 to 10 billion electron volts) from the recently detected optical nova of the symbiotic star V407 Cygni. We propose that the material of the nova shell interacts with the dense ambient medium of the red giant primary and that particles can be accelerated effectively to produce π0 decay γ-rays from proton-proton interactions. Emission involving inverse Compton scattering of the red giant radiation is also considered and is not ruled out.

Original languageEnglish
Pages (from-to)817-821
Number of pages5
JournalScience
Volume329
Issue number5993
DOIs
Publication statusPublished - 13 Aug 2010

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