Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.

Autores
Abramowski, Ana Laura; Acero, F.; Aharonian, Felix A.; Akhperjanian, A.G.; Anton, G.; Balzer, A.; Barnacka, A.; Barres De Almeida, U.; Becherini, Y.; Becker, J.; Behera, B.; Bernlöhr, K.; Birsin, E.; Biteau, J.; Bochow, A.; Boisson, C.; Bolmont, J.; Bordas, Paul; Brucker, J.; Brun, F.; Brun, P.; Bulik, T.; Büsching, I.; Carrigan, S.; Casanova, S.; Cerruti, M.; Chadwick, P.M.; Charbonnier, A.; Chaves, R. C. G.; Medina, Maria Clementina
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Fornax galaxy cluster was observed with the High Energy Stereoscopic System for a total live time of 14.5 hr, searching for very high energy (VHE; E > 100GeV) γ-rays from dark matter (DM) annihilation. No significant signal was found in searches for point-like and extended emissions. Using several models of the DM density distribution, upper limits on the DM velocity-weighted annihilation cross-section langσvrang as a function of the DM particle mass are derived. Constraints are derived for different DM particle models, such as those arising from Kaluza-Klein and supersymmetric models. Various annihilation final states are considered. Possible enhancements of the DM annihilation γ-ray flux, due to DM substructures of the DM host halo, or from the Sommerfeld effect, are studied. Additional γ-ray contributions from internal bremsstrahlung and inverse Compton radiation are also discussed. For a DM particle mass of 1 TeV, the exclusion limits at 95% of confidence level reach values of langσvrang95% C.L. ~ 10–23 cm3 s–1, depending on the DM particle model and halo properties. Additional contribution from DM substructures can improve the upper limits on langσvrang by more than two orders of magnitude. At masses around 4.5 TeV, the enhancement by substructures and the Sommerfeld resonance effect results in a velocity-weighted annihilation cross-section upper limit at the level of langσvrang95% C.L. ~10–26 cm3 s–1.
Fil: Abramowski, Ana Laura. Universitat Hamburg; Alemania
Fil: Acero, F.. Universidad Montpellier; Francia
Fil: Aharonian, Felix A.. National Academy Of Sciences Of The Republic Of Armenia; Armenia. Max Planck Institut Fur Kernphysik; Alemania
Fil: Akhperjanian, A.G.. Yerevan Physics Institute; Armenia. National Academy Of Sciences Of The Republic Of Armenia; Armenia
Fil: Anton, G.. Universitat Erlangen-Nuremberg; Alemania
Fil: Balzer, A.. Universitat Erlangen-Nuremberg; Alemania
Fil: Barnacka, A.. Nicolaus Copernicus Astronomical Center; Polonia
Fil: Barres De Almeida, U.. University Of Durham; Reino Unido
Fil: Becherini, Y.. Université Paris Diderot - Paris 7; Francia
Fil: Becker, J.. Ruhr Universität Bochum; Alemania
Fil: Behera, B.. Landessternwarte Heidelberg; Alemania
Fil: Bernlöhr, K.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Birsin, E.. Humboldt-universitat Zu Berlin; Alemania
Fil: Biteau, J.. Laboratoire Leprince-Ringuet; Francia
Fil: Bochow, A.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Boisson, C.. Université Paris Diderot - Paris 7; Francia
Fil: Bolmont, J.. Universite Pierre et Marie Curie; Francia
Fil: Bordas, Paul. Universitat Tubingen; Alemania
Fil: Brucker, J.. Universitat Erlangen-Nuremberg; Alemania
Fil: Brun, F.. Laboratoire Leprince-Ringuet; Francia
Fil: Brun, P.. CEA Saclay; Francia
Fil: Bulik, T.. Uniwersytet Warszawski; Argentina
Fil: Büsching, I.. Ruhr Universität Bochum; Alemania
Fil: Carrigan, S.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Casanova, S.. Ruhr Universität Bochum; Alemania
Fil: Cerruti, M.. Université Paris Diderot - Paris 7; Francia
Fil: Chadwick, P.M.. University Of Durham; Reino Unido
Fil: Charbonnier, A.. Universite Pierre et Marie Curie; Francia
Fil: Chaves, R. C. G.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Medina, Maria Clementina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. CEA Saclay; Francia
Materia
Sstroparticle physics
Clusters
Fornax galaxy
Gamma rays
Dark matter
Galaxies
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC 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:11336/39882

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network_name_str CONICET Digital (CONICET)
spelling Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.Abramowski, Ana LauraAcero, F.Aharonian, Felix A.Akhperjanian, A.G.Anton, G.Balzer, A.Barnacka, A.Barres De Almeida, U.Becherini, Y.Becker, J.Behera, B.Bernlöhr, K.Birsin, E.Biteau, J.Bochow, A.Boisson, C.Bolmont, J.Bordas, PaulBrucker, J.Brun, F.Brun, P.Bulik, T.Büsching, I.Carrigan, S.Casanova, S.Cerruti, M.Chadwick, P.M.Charbonnier, A.Chaves, R. C. G.Medina, Maria ClementinaSstroparticle physicsClustersFornax galaxyGamma raysDark matterGalaxieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The Fornax galaxy cluster was observed with the High Energy Stereoscopic System for a total live time of 14.5 hr, searching for very high energy (VHE; E > 100GeV) γ-rays from dark matter (DM) annihilation. No significant signal was found in searches for point-like and extended emissions. Using several models of the DM density distribution, upper limits on the DM velocity-weighted annihilation cross-section langσvrang as a function of the DM particle mass are derived. Constraints are derived for different DM particle models, such as those arising from Kaluza-Klein and supersymmetric models. Various annihilation final states are considered. Possible enhancements of the DM annihilation γ-ray flux, due to DM substructures of the DM host halo, or from the Sommerfeld effect, are studied. Additional γ-ray contributions from internal bremsstrahlung and inverse Compton radiation are also discussed. For a DM particle mass of 1 TeV, the exclusion limits at 95% of confidence level reach values of langσvrang95% C.L. ~ 10–23 cm3 s–1, depending on the DM particle model and halo properties. Additional contribution from DM substructures can improve the upper limits on langσvrang by more than two orders of magnitude. At masses around 4.5 TeV, the enhancement by substructures and the Sommerfeld resonance effect results in a velocity-weighted annihilation cross-section upper limit at the level of langσvrang95% C.L. ~10–26 cm3 s–1.Fil: Abramowski, Ana Laura. Universitat Hamburg; AlemaniaFil: Acero, F.. Universidad Montpellier; FranciaFil: Aharonian, Felix A.. National Academy Of Sciences Of The Republic Of Armenia; Armenia. Max Planck Institut Fur Kernphysik; AlemaniaFil: Akhperjanian, A.G.. Yerevan Physics Institute; Armenia. National Academy Of Sciences Of The Republic Of Armenia; ArmeniaFil: Anton, G.. Universitat Erlangen-Nuremberg; AlemaniaFil: Balzer, A.. Universitat Erlangen-Nuremberg; AlemaniaFil: Barnacka, A.. Nicolaus Copernicus Astronomical Center; PoloniaFil: Barres De Almeida, U.. University Of Durham; Reino UnidoFil: Becherini, Y.. Université Paris Diderot - Paris 7; FranciaFil: Becker, J.. Ruhr Universität Bochum; AlemaniaFil: Behera, B.. Landessternwarte Heidelberg; AlemaniaFil: Bernlöhr, K.. Max Planck Institut Fur Kernphysik; AlemaniaFil: Birsin, E.. Humboldt-universitat Zu Berlin; AlemaniaFil: Biteau, J.. Laboratoire Leprince-Ringuet; FranciaFil: Bochow, A.. Max Planck Institut Fur Kernphysik; AlemaniaFil: Boisson, C.. Université Paris Diderot - Paris 7; FranciaFil: Bolmont, J.. Universite Pierre et Marie Curie; FranciaFil: Bordas, Paul. Universitat Tubingen; AlemaniaFil: Brucker, J.. Universitat Erlangen-Nuremberg; AlemaniaFil: Brun, F.. Laboratoire Leprince-Ringuet; FranciaFil: Brun, P.. CEA Saclay; FranciaFil: Bulik, T.. Uniwersytet Warszawski; ArgentinaFil: Büsching, I.. Ruhr Universität Bochum; AlemaniaFil: Carrigan, S.. Max Planck Institut Fur Kernphysik; AlemaniaFil: Casanova, S.. Ruhr Universität Bochum; AlemaniaFil: Cerruti, M.. Université Paris Diderot - Paris 7; FranciaFil: Chadwick, P.M.. University Of Durham; Reino UnidoFil: Charbonnier, A.. Universite Pierre et Marie Curie; FranciaFil: Chaves, R. C. G.. Max Planck Institut Fur Kernphysik; AlemaniaFil: Medina, Maria Clementina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. CEA Saclay; FranciaIop Publishing2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/39882Abramowski, Ana Laura; Acero, F.; Aharonian, Felix A.; Akhperjanian, A.G.; Anton, G.; et al.; Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.; Iop Publishing; Astrophysical Journal; 750; 2; 5-2012; 123-1300004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/750/2/123info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/750/2/123/metainfo:eu-repo/semantics/openAccessAtribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)https://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:22:09Zoai:ri.conicet.gov.ar:11336/39882instacron: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 10:22:10.216CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
title Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
spellingShingle Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
Abramowski, Ana Laura
Sstroparticle physics
Clusters
Fornax galaxy
Gamma rays
Dark matter
Galaxies
title_short Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
title_full Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
title_fullStr Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
title_full_unstemmed Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
title_sort Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
dc.creator.none.fl_str_mv Abramowski, Ana Laura
Acero, F.
Aharonian, Felix A.
Akhperjanian, A.G.
Anton, G.
Balzer, A.
Barnacka, A.
Barres De Almeida, U.
Becherini, Y.
Becker, J.
Behera, B.
Bernlöhr, K.
Birsin, E.
Biteau, J.
Bochow, A.
Boisson, C.
Bolmont, J.
Bordas, Paul
Brucker, J.
Brun, F.
Brun, P.
Bulik, T.
Büsching, I.
Carrigan, S.
Casanova, S.
Cerruti, M.
Chadwick, P.M.
Charbonnier, A.
Chaves, R. C. G.
Medina, Maria Clementina
author Abramowski, Ana Laura
author_facet Abramowski, Ana Laura
Acero, F.
Aharonian, Felix A.
Akhperjanian, A.G.
Anton, G.
Balzer, A.
Barnacka, A.
Barres De Almeida, U.
Becherini, Y.
Becker, J.
Behera, B.
Bernlöhr, K.
Birsin, E.
Biteau, J.
Bochow, A.
Boisson, C.
Bolmont, J.
Bordas, Paul
Brucker, J.
Brun, F.
Brun, P.
Bulik, T.
Büsching, I.
Carrigan, S.
Casanova, S.
Cerruti, M.
Chadwick, P.M.
Charbonnier, A.
Chaves, R. C. G.
Medina, Maria Clementina
author_role author
author2 Acero, F.
Aharonian, Felix A.
Akhperjanian, A.G.
Anton, G.
Balzer, A.
Barnacka, A.
Barres De Almeida, U.
Becherini, Y.
Becker, J.
Behera, B.
Bernlöhr, K.
Birsin, E.
Biteau, J.
Bochow, A.
Boisson, C.
Bolmont, J.
Bordas, Paul
Brucker, J.
Brun, F.
Brun, P.
Bulik, T.
Büsching, I.
Carrigan, S.
Casanova, S.
Cerruti, M.
Chadwick, P.M.
Charbonnier, A.
Chaves, R. C. G.
Medina, Maria Clementina
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 Sstroparticle physics
Clusters
Fornax galaxy
Gamma rays
Dark matter
Galaxies
topic Sstroparticle physics
Clusters
Fornax galaxy
Gamma rays
Dark matter
Galaxies
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Fornax galaxy cluster was observed with the High Energy Stereoscopic System for a total live time of 14.5 hr, searching for very high energy (VHE; E > 100GeV) γ-rays from dark matter (DM) annihilation. No significant signal was found in searches for point-like and extended emissions. Using several models of the DM density distribution, upper limits on the DM velocity-weighted annihilation cross-section langσvrang as a function of the DM particle mass are derived. Constraints are derived for different DM particle models, such as those arising from Kaluza-Klein and supersymmetric models. Various annihilation final states are considered. Possible enhancements of the DM annihilation γ-ray flux, due to DM substructures of the DM host halo, or from the Sommerfeld effect, are studied. Additional γ-ray contributions from internal bremsstrahlung and inverse Compton radiation are also discussed. For a DM particle mass of 1 TeV, the exclusion limits at 95% of confidence level reach values of langσvrang95% C.L. ~ 10–23 cm3 s–1, depending on the DM particle model and halo properties. Additional contribution from DM substructures can improve the upper limits on langσvrang by more than two orders of magnitude. At masses around 4.5 TeV, the enhancement by substructures and the Sommerfeld resonance effect results in a velocity-weighted annihilation cross-section upper limit at the level of langσvrang95% C.L. ~10–26 cm3 s–1.
Fil: Abramowski, Ana Laura. Universitat Hamburg; Alemania
Fil: Acero, F.. Universidad Montpellier; Francia
Fil: Aharonian, Felix A.. National Academy Of Sciences Of The Republic Of Armenia; Armenia. Max Planck Institut Fur Kernphysik; Alemania
Fil: Akhperjanian, A.G.. Yerevan Physics Institute; Armenia. National Academy Of Sciences Of The Republic Of Armenia; Armenia
Fil: Anton, G.. Universitat Erlangen-Nuremberg; Alemania
Fil: Balzer, A.. Universitat Erlangen-Nuremberg; Alemania
Fil: Barnacka, A.. Nicolaus Copernicus Astronomical Center; Polonia
Fil: Barres De Almeida, U.. University Of Durham; Reino Unido
Fil: Becherini, Y.. Université Paris Diderot - Paris 7; Francia
Fil: Becker, J.. Ruhr Universität Bochum; Alemania
Fil: Behera, B.. Landessternwarte Heidelberg; Alemania
Fil: Bernlöhr, K.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Birsin, E.. Humboldt-universitat Zu Berlin; Alemania
Fil: Biteau, J.. Laboratoire Leprince-Ringuet; Francia
Fil: Bochow, A.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Boisson, C.. Université Paris Diderot - Paris 7; Francia
Fil: Bolmont, J.. Universite Pierre et Marie Curie; Francia
Fil: Bordas, Paul. Universitat Tubingen; Alemania
Fil: Brucker, J.. Universitat Erlangen-Nuremberg; Alemania
Fil: Brun, F.. Laboratoire Leprince-Ringuet; Francia
Fil: Brun, P.. CEA Saclay; Francia
Fil: Bulik, T.. Uniwersytet Warszawski; Argentina
Fil: Büsching, I.. Ruhr Universität Bochum; Alemania
Fil: Carrigan, S.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Casanova, S.. Ruhr Universität Bochum; Alemania
Fil: Cerruti, M.. Université Paris Diderot - Paris 7; Francia
Fil: Chadwick, P.M.. University Of Durham; Reino Unido
Fil: Charbonnier, A.. Universite Pierre et Marie Curie; Francia
Fil: Chaves, R. C. G.. Max Planck Institut Fur Kernphysik; Alemania
Fil: Medina, Maria Clementina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. CEA Saclay; Francia
description The Fornax galaxy cluster was observed with the High Energy Stereoscopic System for a total live time of 14.5 hr, searching for very high energy (VHE; E > 100GeV) γ-rays from dark matter (DM) annihilation. No significant signal was found in searches for point-like and extended emissions. Using several models of the DM density distribution, upper limits on the DM velocity-weighted annihilation cross-section langσvrang as a function of the DM particle mass are derived. Constraints are derived for different DM particle models, such as those arising from Kaluza-Klein and supersymmetric models. Various annihilation final states are considered. Possible enhancements of the DM annihilation γ-ray flux, due to DM substructures of the DM host halo, or from the Sommerfeld effect, are studied. Additional γ-ray contributions from internal bremsstrahlung and inverse Compton radiation are also discussed. For a DM particle mass of 1 TeV, the exclusion limits at 95% of confidence level reach values of langσvrang95% C.L. ~ 10–23 cm3 s–1, depending on the DM particle model and halo properties. Additional contribution from DM substructures can improve the upper limits on langσvrang by more than two orders of magnitude. At masses around 4.5 TeV, the enhancement by substructures and the Sommerfeld resonance effect results in a velocity-weighted annihilation cross-section upper limit at the level of langσvrang95% C.L. ~10–26 cm3 s–1.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
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/11336/39882
Abramowski, Ana Laura; Acero, F.; Aharonian, Felix A.; Akhperjanian, A.G.; Anton, G.; et al.; Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.; Iop Publishing; Astrophysical Journal; 750; 2; 5-2012; 123-130
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39882
identifier_str_mv Abramowski, Ana Laura; Acero, F.; Aharonian, Felix A.; Akhperjanian, A.G.; Anton, G.; et al.; Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.; Iop Publishing; Astrophysical Journal; 750; 2; 5-2012; 123-130
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/750/2/123
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/750/2/123/meta
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
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 Iop Publishing
publisher.none.fl_str_mv Iop Publishing
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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