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dc.contributor.author
Abdo, A. A.
dc.contributor.author
Ackermann, M.
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Ajello, M.
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Allafort, A.
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Baldini, L.
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Ballet, J.
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Barbiellini, G.
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Baring, M. G.
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Bastieri, D.
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Baughman, B. M.
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Bechtol, K.
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Bellazzini, R.
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Berenji, B.
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Blandford, R. D.
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Bloom, E. D.
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Bonamente, E.
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Borgland, A. W.
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Bregeon, J.
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Brez, A.
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Brigida, M.
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Bruel, P.
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Buehler, R.
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Burnett, T. H.
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Busetto, G.
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Caliandro, G. A.
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Cameron, R. A.
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Caraveo, P. A.
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Casandjian, J. M.
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Cecchi, C.
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Celik, O.
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Cillis, Analia Nilda
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Fermi-LAT Collaboration
dc.date.available
2017-06-29T18:46:26Z
dc.date.issued
2010-02
dc.identifier.citation
Abdo, A. A.; Ackermann, M.; Ajello, M.; Allafort, A.; Baldini, L.; et al.; Fermi-LAT Discovery of GeV Gamma-Ray Emission from the Young Supernova Remnant Cassiopeia A; IOP Publishing; Astrophysical Journal letters; 710; 1; 2-2010; L92-L97
dc.identifier.issn
0004-637X
dc.identifier.uri
http://hdl.handle.net/11336/19155
dc.description.abstract
We report on the first detection of GeV high-energy gamma-ray emission from a young supernova remnant (SNR) with the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope. These observations reveal a source with no discernible spatial extension detected at a significance level of 12.2σ above 500 MeV at a location that is consistent with the position of the remnant of the supernova explosion that occurred around 1680 in the Cassiopeia constellation—Cassiopeia A (Cas A). The gamma-ray flux and spectral shape of the source are consistent with a scenario in which the gamma-ray emission originates from relativistic particles accelerated in the shell of this remnant. The total content of cosmic rays (electrons and protons) accelerated in Cas A can be estimated as W CR ~= (1-4) × 1049 erg thanks to the well-known density in the remnant assuming that the observed gamma ray originates in the SNR shell(s). The magnetic field in the radio-emitting plasma can be robustly constrained as B >= 0.1 mG, providing new evidence of the magnetic field amplification at the forward shock and the strong field in the shocked ejecta.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Acceleration of Particles
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Ism
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Cassiopeia A
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Radiation Mechanisms: Non-Thermal
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Fermi-LAT Discovery of GeV Gamma-Ray Emission from the Young Supernova Remnant Cassiopeia A
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-26T19:48:50Z
dc.journal.volume
710
dc.journal.number
1
dc.journal.pagination
L92-L97
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Abdo, A. A.. National Academy of Sciences; Estados Unidos. Spece Sciences División. Naval Research Laboratory; Estados Unidos
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Fil: Ackermann, M.. University Of Stanford; Estados Unidos
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Fil: Ajello, M.. University Of Stanford; Estados Unidos
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Fil: Allafort, A.. University Of Stanford; Estados Unidos
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Fil: Baldini, L.. Istituto Nazionale di Fisica Nucleare; Italia
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Fil: Ballet, J.. Universite Paris Diderot; Francia
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Fil: Barbiellini, G.. Universita di Trieste; Italia
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Fil: Baring, M. G.. Rice University; Estados Unidos
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Fil: Bastieri, D.. Universita Di Padova; Italia
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Fil: Baughman, B. M.. Ohio State University; Estados Unidos
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Fil: Bechtol, K.. University Of Stanford; Estados Unidos
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Fil: Bellazzini, R.. Istituto Nazionale di Fisica Nucleare; Italia
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Fil: Berenji, B.. University Of Stanford; Estados Unidos
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Fil: Blandford, R. D.. University Of Stanford; Estados Unidos
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Fil: Bloom, E. D.. University Of Stanford; Estados Unidos
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Fil: Bonamente, E.. Universita degli Studi di Perugia; Italia
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Fil: Borgland, A. W.. University Of Stanford; Estados Unidos
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Fil: Bregeon, J.. Istituto Nazionale di Fisica Nucleare; Italia
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Fil: Brez, A.. Istituto Nazionale di Fisica Nucleare; Italia
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Fil: Brigida, M.. Universita e del Politecnico di Bari; Italia
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Fil: Bruel, P.. Ecole Polytechnique; Francia
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Fil: Buehler, R.. University Of Stanford; Estados Unidos
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Fil: Burnett, T. H.. University of Washington; Estados Unidos
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Fil: Busetto, G.. Universita Di Padova; Italia
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Fil: Caliandro, G. A.. Institut de Ciencies de l’Espai; España
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Fil: Cameron, R. A.. University Of Stanford; Estados Unidos
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Fil: Caraveo, P. A.. Istituto di Astrofisica Spaziale e Fisica Cosmica; Italia
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Fil: Casandjian, J. M.. Université Paris Diderot - Paris 7; Francia
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Fil: Cecchi, C.. Universita degli Studi di Perugia; Italia
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Fil: Celik, O.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
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Fil: Cillis, Analia Nilda. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
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Fil: Fermi-LAT Collaboration.
dc.journal.title
Astrophysical Journal letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2041-8205/710/1/L92/meta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1001.1419
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/2041-8205/710/1/L92
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