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

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 bel... Full description

Journal Title: Science 2014, Vol.345, pp.554-558
Main Author: Ackermann, Markus
Other Authors: Ajello, Marco , Albert, A , Baldini, Luca , Ballet, Jean , Barbiellini, Guido , Bastieri, D , Bellazzini, R , Bissaldi, E , D. Blandford, R , D. Bloom, E , Bottacini, E , J. Brandt, T , Bregeon, J , Bruel, Pascal , Buehler, R , Buson, S , A. Caliandro, G , A. Cameron, R , Caragiulo, M
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0036-8075 ; E-ISSN: 1095-9203 ; DOI: 10.1126/science.1253947
Link: http://hal.in2p3.fr/in2p3-01071912
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recordid: hal_soai_HAL_in2p3_01071912v1
title: Fermi establishes classical novae as a distinct class of gamma-ray sources
format: Article
creator:
  • Ackermann, Markus
  • Ajello, Marco
  • Albert, A
  • Baldini, Luca
  • Ballet, Jean
  • Barbiellini, Guido
  • Bastieri, D
  • Bellazzini, R
  • Bissaldi, E
  • D. Blandford, R
  • D. Bloom, E
  • Bottacini, E
  • J. Brandt, T
  • Bregeon, J
  • Bruel, Pascal
  • Buehler, R
  • Buson, S
  • A. Caliandro, G
  • A. Cameron, R
  • Caragiulo, M
subjects:
  • Physics
  • Astrophysics
  • High Energy Astrophysical Phenomena
  • Sciences of the Universe
  • Astrophysics
  • High Energy Astrophysical Phenomena
  • Sciences (General)
  • Biology
  • Physics
ispartof: Science, 2014, Vol.345, pp.554-558
description: 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.
language: eng
source:
identifier: ISSN: 0036-8075 ; E-ISSN: 1095-9203 ; DOI: 10.1126/science.1253947
fulltext: no_fulltext
issn:
  • 0036-8075
  • 00368075
  • 1095-9203
  • 10959203
url: Link


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titleFermi establishes classical novae as a distinct class of gamma-ray sources
creatorAckermann, Markus ; Ajello, Marco ; Albert, A ; Baldini, Luca ; Ballet, Jean ; Barbiellini, Guido ; Bastieri, D ; Bellazzini, R ; Bissaldi, E ; D. Blandford, R ; D. Bloom, E ; Bottacini, E ; J. Brandt, T ; Bregeon, J ; Bruel, Pascal ; Buehler, R ; Buson, S ; A. Caliandro, G ; A. Cameron, R ; Caragiulo, M
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ispartofScience, 2014, Vol.345, pp.554-558
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subjectPhysics ; Astrophysics ; High Energy Astrophysical Phenomena ; Sciences of the Universe ; Astrophysics ; High Energy Astrophysical Phenomena ; Sciences (General) ; Biology ; Physics
descriptionA 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.
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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.

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doi10.1126/science.1253947
lad01Science
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