Fermi establishes classical novae as a distinct class of gamma-ray sources

Markus Ackermann Marco Ajello A. Albert 1 Luca Baldini Jean Ballet 2 Guido Barbiellini D. Bastieri R. Bellazzini E. Bissaldi R. D. Blandford E. D. Bloom E. Bottacini T. J. Brandt 3 J. Bregeon P. Bruel 4 R. Buehler S. Buson G. A. Caliandro R. A. Cameron M. Caragiulo P. A. Caraveo E. Cavazzuti E. Charles A. Chekhtman C. C. Cheung J. Chiang G. Chiaro S. Ciprini R. Claus J. Cohen-Tanugi J. Conrad S. Corbel 2 F. D'Ammando A. De Angelis P. R. den Hartog F. De Palma C. D. Dermer R. Desiante S. W. Digel L. Di Venere E. Do Couto E Silva D. Donato P. S. Drell A. Drlica-Wagner C. Favuzzi E. C. Ferrara W. B. Focke A. Franckowiak L. Fuhrmann Y. Fukazawa P. Fusco 5 F. Gargano D. Gasparrini S. Germani N. Giglietto F. Giordano M. Giroletti T. Glanzman G. Godfrey I. A. Grenier 2 J. E. Grove S. Guiriec D. Hadasch A. K. Harding M. Hayashida E. Hays J.W. Hewitt A. B. Hill 6 X. Hou 7 P. Jean 8 T. Jogler G. J ́ Ohannesson A. S. Johnson W. N. Johnson M. Kerr J. Kn ̈ Odlseder M. Kuss S. Larsson L. Latronico M. Lemoine-Goumard 7 F. Longo F. Loparco 9 B. Lott 10 M. N. Lovellette P. Lubrano A. Manfreda P. Martin 11 F. Massaro M. Mayer M. N. Mazziotta J. E. Mcenery P. F. Michelson W. Mitthumsiri T. Mizuno M. E. Monzani A. Morselli I. V. Moskalenko S. Murgia R. Nemmen E. Nuss 9 T. Ohsugi N. Omodei M. Orienti E. Orlando J. F. Ormes D. Paneque J. H. Panetta J. S. Perkins M. Pesce-Rollins F. Piron 9 G. Pivato T.A. Porter S. Rain ' O R. Rando M. Razzano S. Razzaque A. Reimer O. Reimer T. Reposeur 7 P. M. Saz Parkinson M. Schaal A. Schulz C. Sgr ' O E. J. Siskind G. Spandre P. Spinelli L. Stawarz D. J. Suson H. Takahashi T. Tanaka J. G. Thayer J. B. Thayer D. J. Thompson L. Tibaldo M. Tinivella D. F. Torres G. Tosti E. Troja Y. Uchiyama G. Vianello B. L. Winer M. T. Wolff D. L. Wood K. S. Wood M. Wood S. Charbonnel 12 R. H. D. Corbet I. De Gennaro Aquino J. P. Edlin E. Mason G. J. Schwarz S. N. Shore S. Starrfield 13 F. Teyssier
1 GRPHE - Groupe de Recherche en Physique des Hautes Energies
2 AIM - UMR 7158 - UMR E 9005 - Astrophysique Interactions Multi-échelles
3 IRAP - Institut de recherche en astrophysique et planétologie
4 LLR - Laboratoire Leprince-Ringuet
5 INFN, sezione di Bari - Istituto Nazionale di Fisica Nucleare, sezione di Bari
6 LAOG - Laboratoire d'Astrophysique de Grenoble
7 ASTRO - Astroparticules
CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
8 CSTB - Centre Scientifique et Technique du Bâtiment
9 LUPM - Laboratoire Univers et Particules de Montpellier
10 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
11 CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tecnológicas
12 Association T60, Observatoire Midi-Pyrénées
13 University of Arizona
Abstract : A classical nova results from runaway thermonuclear explosions on the surface of a white dwarf that accretes matter from a low-mass main-sequence stellar companion. In 2012 and 2013, three novae were detected in γ rays and stood in contrast to the first γ-ray-detected nova V407 Cygni 2010, which belongs to a rare class of symbiotic binary systems. Despite likely differences in the compositions and masses of their white dwarf progenitors, the three classical novae are similarly characterized as soft-spectrum transient γ-ray sources detected over 2- to 3-week durations. The γ-ray detections point to unexpected high-energy particle acceleration processes linked to the mass ejection from thermonuclear explosions in an unanticipated class of Galactic γ-ray sources.
Type de document :
Article dans une revue
Science, American Association for the Advancement of Science, 2014, 345, pp.554-558. 〈10.1126/science.1253947〉
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Contributeur : Nathalie Martin <>
Soumis le : mardi 7 octobre 2014 - 09:28:52
Dernière modification le : mercredi 19 septembre 2018 - 01:24:00

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Markus Ackermann, Marco Ajello, A. Albert, Luca Baldini, Jean Ballet, et al.. Fermi establishes classical novae as a distinct class of gamma-ray sources. Science, American Association for the Advancement of Science, 2014, 345, pp.554-558. 〈10.1126/science.1253947〉. 〈in2p3-01071912〉

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