Detection of the Characteristic Pion-Decay Signature in Supernova Remnants

Autores
Ackerman, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; Garbiellini, G.; Baring, M. G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bottaccini, E.; Brandt, T. J.; Bregeon, J.; Brigida, M.; Bruel, P.; Buehler, R.; Busetto, G.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A.; Casandjian, J. M.; Cecchi, C.; Celic, O.; Charles, E.; Cillis, Analia Nilda
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cosmic rays are particles (mostly protons) accelerated to relativistic speeds. Despite wide agreement that supernova remnants (SNRs) are the sources of galactic cosmic rays, unequivocal evidence for the acceleration of protons in these objects is still lacking. When accelerated protons encounter interstellar material, they produce neutral pions, which in turn decay into gamma rays. This offers a compelling way to detect the acceleration sites of protons. The identification of pion-decay gamma rays has been difficult because high-energy electrons also produce gamma rays via bremsstrahlung and inverse Compton scattering. We detected the characteristic pion-decay feature in the gamma-ray spectra of two SNRs, IC 443 and W44, with the Fermi Large Area Telescope. This detection provides direct evidence that cosmic-ray protons are accelerated in SNRs.
Fil: Ackerman, M.. Deutsches Elektronen Synchrotron DESY; Alemania
Fil: Ajello, M.. University of California; Estados Unidos
Fil: Allafort, A.. University Of Stanford; Estados Unidos
Fil: Baldini, L.. Universita Degli Studi Di Pisa; Italia
Fil: Ballet, J.. Universit´e Paris Diderot; Francia
Fil: Garbiellini, G.. Universit`a di Trieste; Italia
Fil: Baring, M. G.. Rice University; Estados Unidos
Fil: Bastieri, D.. Universita Di Padova; Italia
Fil: Bechtol, K.. University Of Stanford; Estados Unidos
Fil: Bellazzini, R.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Blandford, R. D.. University Of Stanford; Estados Unidos
Fil: Bloom, E. D.. University Of Stanford; Estados Unidos
Fil: Bonamente, E.. Universita degli Studi di Perugia; Italia
Fil: Borgland, A. W.. University of Stanford; Estados Unidos
Fil: Bottaccini, E.. University Of Stanford; Estados Unidos
Fil: Brandt, T. J.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
Fil: Bregeon, J.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Brigida, M.. Universit`a e del Politecnico di Bari; Italia
Fil: Bruel, P.. Ecole polytechnique, CNRS; Francia
Fil: Buehler, R.. University Of Stanford; Estados Unidos
Fil: Busetto, G.. Universita di Padova; Italia
Fil: Buson, S..
Fil: Caliandro, G. A.. Institut de Ciencies de l’Espai (IEEE-CSIC); España
Fil: Cameron, R. A.. University Of Stanford; Estados Unidos
Fil: Caraveo, P. A.. INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica; Italia
Fil: Casandjian, J. M.. Universite Paris Diderot; Francia
Fil: Cecchi, C.. Universita degli Studi di Perugia; Italia
Fil: Celic, O.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
Fil: Charles, E.. University Of Stanford; Estados Unidos
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
Materia
Astronomy
Physics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/17370
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Detection of the Characteristic Pion-Decay Signature in Supernova RemnantsAckerman, M.Ajello, M.Allafort, A.Baldini, L.Ballet, J.Garbiellini, G.Baring, M. G.Bastieri, D.Bechtol, K.Bellazzini, R.Blandford, R. D.Bloom, E. D.Bonamente, E.Borgland, A. W.Bottaccini, E.Brandt, T. J.Bregeon, J.Brigida, M.Bruel, P.Buehler, R.Busetto, G.Buson, S.Caliandro, G. A.Cameron, R. A.Caraveo, P. A.Casandjian, J. M.Cecchi, C.Celic, O.Charles, E.Cillis, Analia NildaAstronomyPhysicshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Cosmic rays are particles (mostly protons) accelerated to relativistic speeds. Despite wide agreement that supernova remnants (SNRs) are the sources of galactic cosmic rays, unequivocal evidence for the acceleration of protons in these objects is still lacking. When accelerated protons encounter interstellar material, they produce neutral pions, which in turn decay into gamma rays. This offers a compelling way to detect the acceleration sites of protons. The identification of pion-decay gamma rays has been difficult because high-energy electrons also produce gamma rays via bremsstrahlung and inverse Compton scattering. We detected the characteristic pion-decay feature in the gamma-ray spectra of two SNRs, IC 443 and W44, with the Fermi Large Area Telescope. This detection provides direct evidence that cosmic-ray protons are accelerated in SNRs.Fil: Ackerman, M.. Deutsches Elektronen Synchrotron DESY; AlemaniaFil: Ajello, M.. University of California; Estados UnidosFil: Allafort, A.. University Of Stanford; Estados UnidosFil: Baldini, L.. Universita Degli Studi Di Pisa; ItaliaFil: Ballet, J.. Universit´e Paris Diderot; FranciaFil: Garbiellini, G.. Universit`a di Trieste; ItaliaFil: Baring, M. G.. Rice University; Estados UnidosFil: Bastieri, D.. Universita Di Padova; ItaliaFil: Bechtol, K.. University Of Stanford; Estados UnidosFil: Bellazzini, R.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Blandford, R. D.. University Of Stanford; Estados UnidosFil: Bloom, E. D.. University Of Stanford; Estados UnidosFil: Bonamente, E.. Universita degli Studi di Perugia; ItaliaFil: Borgland, A. W.. University of Stanford; Estados UnidosFil: Bottaccini, E.. University Of Stanford; Estados UnidosFil: Brandt, T. J.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados UnidosFil: Bregeon, J.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Brigida, M.. Universit`a e del Politecnico di Bari; ItaliaFil: Bruel, P.. Ecole polytechnique, CNRS; FranciaFil: Buehler, R.. University Of Stanford; Estados UnidosFil: Busetto, G.. Universita di Padova; ItaliaFil: Buson, S..Fil: Caliandro, G. A.. Institut de Ciencies de l’Espai (IEEE-CSIC); EspañaFil: Cameron, R. A.. University Of Stanford; Estados UnidosFil: Caraveo, P. A.. INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica; ItaliaFil: Casandjian, J. M.. Universite Paris Diderot; FranciaFil: Cecchi, C.. Universita degli Studi di Perugia; ItaliaFil: Celic, O.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados UnidosFil: Charles, E.. University Of Stanford; Estados UnidosFil: 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; ArgentinaAmerican Association For The Advancement Of Science2013-02-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17370Ackerman, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; et al.; Detection of the Characteristic Pion-Decay Signature in Supernova Remnants; American Association For The Advancement Of Science; Science; 339; 6121; 14-2-2013; 807-8110036-8075enginfo:eu-repo/semantics/altIdentifier/url/http://science.sciencemag.org/content/339/6121/807info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1302.3307info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:42Zoai:ri.conicet.gov.ar:11336/17370instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:25:42.334CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
title Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
spellingShingle Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
Ackerman, M.
Astronomy
Physics
title_short Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
title_full Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
title_fullStr Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
title_full_unstemmed Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
title_sort Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
dc.creator.none.fl_str_mv Ackerman, M.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Garbiellini, G.
Baring, M. G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bottaccini, E.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celic, O.
Charles, E.
Cillis, Analia Nilda
author Ackerman, M.
author_facet Ackerman, M.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Garbiellini, G.
Baring, M. G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bottaccini, E.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celic, O.
Charles, E.
Cillis, Analia Nilda
author_role author
author2 Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Garbiellini, G.
Baring, M. G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bottaccini, E.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celic, O.
Charles, E.
Cillis, Analia Nilda
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Astronomy
Physics
topic Astronomy
Physics
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cosmic rays are particles (mostly protons) accelerated to relativistic speeds. Despite wide agreement that supernova remnants (SNRs) are the sources of galactic cosmic rays, unequivocal evidence for the acceleration of protons in these objects is still lacking. When accelerated protons encounter interstellar material, they produce neutral pions, which in turn decay into gamma rays. This offers a compelling way to detect the acceleration sites of protons. The identification of pion-decay gamma rays has been difficult because high-energy electrons also produce gamma rays via bremsstrahlung and inverse Compton scattering. We detected the characteristic pion-decay feature in the gamma-ray spectra of two SNRs, IC 443 and W44, with the Fermi Large Area Telescope. This detection provides direct evidence that cosmic-ray protons are accelerated in SNRs.
Fil: Ackerman, M.. Deutsches Elektronen Synchrotron DESY; Alemania
Fil: Ajello, M.. University of California; Estados Unidos
Fil: Allafort, A.. University Of Stanford; Estados Unidos
Fil: Baldini, L.. Universita Degli Studi Di Pisa; Italia
Fil: Ballet, J.. Universit´e Paris Diderot; Francia
Fil: Garbiellini, G.. Universit`a di Trieste; Italia
Fil: Baring, M. G.. Rice University; Estados Unidos
Fil: Bastieri, D.. Universita Di Padova; Italia
Fil: Bechtol, K.. University Of Stanford; Estados Unidos
Fil: Bellazzini, R.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Blandford, R. D.. University Of Stanford; Estados Unidos
Fil: Bloom, E. D.. University Of Stanford; Estados Unidos
Fil: Bonamente, E.. Universita degli Studi di Perugia; Italia
Fil: Borgland, A. W.. University of Stanford; Estados Unidos
Fil: Bottaccini, E.. University Of Stanford; Estados Unidos
Fil: Brandt, T. J.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
Fil: Bregeon, J.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Brigida, M.. Universit`a e del Politecnico di Bari; Italia
Fil: Bruel, P.. Ecole polytechnique, CNRS; Francia
Fil: Buehler, R.. University Of Stanford; Estados Unidos
Fil: Busetto, G.. Universita di Padova; Italia
Fil: Buson, S..
Fil: Caliandro, G. A.. Institut de Ciencies de l’Espai (IEEE-CSIC); España
Fil: Cameron, R. A.. University Of Stanford; Estados Unidos
Fil: Caraveo, P. A.. INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica; Italia
Fil: Casandjian, J. M.. Universite Paris Diderot; Francia
Fil: Cecchi, C.. Universita degli Studi di Perugia; Italia
Fil: Celic, O.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
Fil: Charles, E.. University Of Stanford; Estados Unidos
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
description Cosmic rays are particles (mostly protons) accelerated to relativistic speeds. Despite wide agreement that supernova remnants (SNRs) are the sources of galactic cosmic rays, unequivocal evidence for the acceleration of protons in these objects is still lacking. When accelerated protons encounter interstellar material, they produce neutral pions, which in turn decay into gamma rays. This offers a compelling way to detect the acceleration sites of protons. The identification of pion-decay gamma rays has been difficult because high-energy electrons also produce gamma rays via bremsstrahlung and inverse Compton scattering. We detected the characteristic pion-decay feature in the gamma-ray spectra of two SNRs, IC 443 and W44, with the Fermi Large Area Telescope. This detection provides direct evidence that cosmic-ray protons are accelerated in SNRs.
publishDate 2013
dc.date.none.fl_str_mv 2013-02-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/17370
Ackerman, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; et al.; Detection of the Characteristic Pion-Decay Signature in Supernova Remnants; American Association For The Advancement Of Science; Science; 339; 6121; 14-2-2013; 807-811
0036-8075
url http://hdl.handle.net/11336/17370
identifier_str_mv Ackerman, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; et al.; Detection of the Characteristic Pion-Decay Signature in Supernova Remnants; American Association For The Advancement Of Science; Science; 339; 6121; 14-2-2013; 807-811
0036-8075
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://science.sciencemag.org/content/339/6121/807
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1302.3307
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Association For The Advancement Of Science
publisher.none.fl_str_mv American Association For The Advancement Of Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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