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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/39882
Ver los metadatos del registro completo
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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 Técnicas2025-10-22T11:54:56Zoai: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:34982025-10-22 11:54:56.954CONICET 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 |
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Iop Publishing |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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