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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/17370
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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 Técnicas2025-09-03T10:05:09Zoai: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:34982025-09-03 10:05:09.522CONICET 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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