Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV

Autores
Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Baughman, B. M.; Bechtol, K.; Bellardi, F.; Bellazzini, R.; Belli, F.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bogart, J. R.; Bonamente, E.; Borgland, A. W.; Brandt, T. J.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P.; Buehler, R.; Burnett, T. H.; Busetto, G.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Cillis, Analia Nilda; Fermi-LAT Collaboration
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the results of our analysis of cosmic-ray electrons using about 8 million electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously-published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law ∝E−3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.
Fil: Ackermann, M.. University Of Stanford; Estados Unidos
Fil: Ajello, M.. University Of Stanford; Estados Unidos
Fil: Atwood, W. B.. University of California; Estados Unidos
Fil: Baldini, L.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Ballet, J.. Université Paris Diderot - Paris 7; Francia
Fil: Barbiellini, G.. Universita Degli Studi Di Trieste; Italia
Fil: Bastieri, D.. Universita Di Padova; Italia
Fil: Baughman, B. M.. Ohio University; Estados Unidos
Fil: Bechtol, K.. University Of Stanford; Estados Unidos
Fil: Bellardi, F.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Bellazzini, R.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Belli, F.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Berenji, B.. University Of Stanford; Estados Unidos
Fil: Blandford, R. D.. University Of Stanford; Estados Unidos
Fil: Bloom, E. D.. University Of Stanford; Estados Unidos
Fil: Bogart, J. R.. University Of Stanford; Estados Unidos
Fil: Bonamente, E.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Borgland, A. W.. University Of Stanford; Estados Unidos
Fil: Brandt, T. J.. Ohio University; Estados Unidos
Fil: Bregeon, J.. University of California; Estados Unidos
Fil: Brez, A.. University of California; Estados Unidos
Fil: Brigida, M.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Bruel, P.. Ecole Polytechnique; Francia
Fil: Buehler, R.. University Of Stanford; Estados Unidos
Fil: Burnett, T. H.. University of Washington; Estados Unidos
Fil: Busetto, G.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Buson, S.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Caliandro, G. A.. Institut de Ciencies de l’Espai; España
Fil: Cameron, R. A.. 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
Fil: Fermi-LAT Collaboration.
Materia
Composition, energy spectra and interactions
Dark matter
Neutrino, muon, pion, and other elementary particles
cosmic rays
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:11336/20435
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/20435
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeVAckermann, M.Ajello, M.Atwood, W. B.Baldini, L.Ballet, J.Barbiellini, G.Bastieri, D.Baughman, B. M.Bechtol, K.Bellardi, F.Bellazzini, R.Belli, F.Berenji, B.Blandford, R. D.Bloom, E. D.Bogart, J. R.Bonamente, E.Borgland, A. W.Brandt, T. J.Bregeon, J.Brez, A.Brigida, M.Bruel, P.Buehler, R.Burnett, T. H.Busetto, G.Buson, S.Caliandro, G. A.Cameron, R. A.Cillis, Analia NildaFermi-LAT CollaborationComposition, energy spectra and interactionsDark matterNeutrino, muon, pion, and other elementary particlescosmic rayshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the results of our analysis of cosmic-ray electrons using about 8 million electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously-published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law ∝E−3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.Fil: Ackermann, M.. University Of Stanford; Estados UnidosFil: Ajello, M.. University Of Stanford; Estados UnidosFil: Atwood, W. B.. University of California; Estados UnidosFil: Baldini, L.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Ballet, J.. Université Paris Diderot - Paris 7; FranciaFil: Barbiellini, G.. Universita Degli Studi Di Trieste; ItaliaFil: Bastieri, D.. Universita Di Padova; ItaliaFil: Baughman, B. M.. Ohio University; Estados UnidosFil: Bechtol, K.. University Of Stanford; Estados UnidosFil: Bellardi, F.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Bellazzini, R.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Belli, F.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Berenji, B.. University Of Stanford; Estados UnidosFil: Blandford, R. D.. University Of Stanford; Estados UnidosFil: Bloom, E. D.. University Of Stanford; Estados UnidosFil: Bogart, J. R.. University Of Stanford; Estados UnidosFil: Bonamente, E.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Borgland, A. W.. University Of Stanford; Estados UnidosFil: Brandt, T. J.. Ohio University; Estados UnidosFil: Bregeon, J.. University of California; Estados UnidosFil: Brez, A.. University of California; Estados UnidosFil: Brigida, M.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Bruel, P.. Ecole Polytechnique; FranciaFil: Buehler, R.. University Of Stanford; Estados UnidosFil: Burnett, T. H.. University of Washington; Estados UnidosFil: Busetto, G.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Buson, S.. Istituto Nazionale di Fisica Nucleare; ItaliaFil: Caliandro, G. A.. Institut de Ciencies de l’Espai; EspañaFil: Cameron, R. A.. 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; ArgentinaFil: Fermi-LAT Collaboration.American Physical Society2010-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/20435Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, L.; Ballet, J.; et al.; Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 82; 5-2010; 092004,1-201550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevD.82.092004info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.82.092004info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1008.3999info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:35Zoai:ri.conicet.gov.ar:11336/20435instacron: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 09:46:36.016CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
title Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
spellingShingle Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
Ackermann, M.
Composition, energy spectra and interactions
Dark matter
Neutrino, muon, pion, and other elementary particles
cosmic rays
title_short Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
title_full Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
title_fullStr Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
title_full_unstemmed Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
title_sort Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
dc.creator.none.fl_str_mv Ackermann, M.
Ajello, M.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellardi, F.
Bellazzini, R.
Belli, F.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bogart, J. R.
Bonamente, E.
Borgland, A. W.
Brandt, T. J.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Cillis, Analia Nilda
Fermi-LAT Collaboration
author Ackermann, M.
author_facet Ackermann, M.
Ajello, M.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellardi, F.
Bellazzini, R.
Belli, F.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bogart, J. R.
Bonamente, E.
Borgland, A. W.
Brandt, T. J.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Cillis, Analia Nilda
Fermi-LAT Collaboration
author_role author
author2 Ajello, M.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellardi, F.
Bellazzini, R.
Belli, F.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bogart, J. R.
Bonamente, E.
Borgland, A. W.
Brandt, T. J.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Cillis, Analia Nilda
Fermi-LAT Collaboration
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
author
dc.subject.none.fl_str_mv Composition, energy spectra and interactions
Dark matter
Neutrino, muon, pion, and other elementary particles
cosmic rays
topic Composition, energy spectra and interactions
Dark matter
Neutrino, muon, pion, and other elementary particles
cosmic rays
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present the results of our analysis of cosmic-ray electrons using about 8 million electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously-published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law ∝E−3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.
Fil: Ackermann, M.. University Of Stanford; Estados Unidos
Fil: Ajello, M.. University Of Stanford; Estados Unidos
Fil: Atwood, W. B.. University of California; Estados Unidos
Fil: Baldini, L.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Ballet, J.. Université Paris Diderot - Paris 7; Francia
Fil: Barbiellini, G.. Universita Degli Studi Di Trieste; Italia
Fil: Bastieri, D.. Universita Di Padova; Italia
Fil: Baughman, B. M.. Ohio University; Estados Unidos
Fil: Bechtol, K.. University Of Stanford; Estados Unidos
Fil: Bellardi, F.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Bellazzini, R.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Belli, F.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Berenji, B.. University Of Stanford; Estados Unidos
Fil: Blandford, R. D.. University Of Stanford; Estados Unidos
Fil: Bloom, E. D.. University Of Stanford; Estados Unidos
Fil: Bogart, J. R.. University Of Stanford; Estados Unidos
Fil: Bonamente, E.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Borgland, A. W.. University Of Stanford; Estados Unidos
Fil: Brandt, T. J.. Ohio University; Estados Unidos
Fil: Bregeon, J.. University of California; Estados Unidos
Fil: Brez, A.. University of California; Estados Unidos
Fil: Brigida, M.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Bruel, P.. Ecole Polytechnique; Francia
Fil: Buehler, R.. University Of Stanford; Estados Unidos
Fil: Burnett, T. H.. University of Washington; Estados Unidos
Fil: Busetto, G.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Buson, S.. Istituto Nazionale di Fisica Nucleare; Italia
Fil: Caliandro, G. A.. Institut de Ciencies de l’Espai; España
Fil: Cameron, R. A.. 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
Fil: Fermi-LAT Collaboration.
description We present the results of our analysis of cosmic-ray electrons using about 8 million electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously-published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law ∝E−3.08±0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.
publishDate 2010
dc.date.none.fl_str_mv 2010-05
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/11336/20435
Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, L.; Ballet, J.; et al.; Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 82; 5-2010; 092004,1-20
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/20435
identifier_str_mv Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, L.; Ballet, J.; et al.; Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 82; 5-2010; 092004,1-20
1550-7998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevD.82.092004
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.82.092004
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1008.3999
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
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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
_version_ 1842268805493948416
score 12.885934

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