Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope
One of the predictions of the ΛCDM cosmological framework is the hierarchical formation of structure, giving rise to dark matter (DM) halos and subhalos. When the latter are massive enough they retain gas (i.e., baryons) and become visible. This is the case of the dwarf satellite galaxies in the Mil...
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/88571 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/88571 |
| Access Level: | acceso abierto |
| Palabra clave: | 524.8 Dark matter experiments Dark matter simulations Dark matter theory Gamma ray experiments Disruption Subhaloes Astrofísica 2101 Cosmología y Cosmogonía |
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Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area TelescopeCoronado Blázquez, JavierSánchez Conde, MiguelDomínguez Díaz, AlbertoAguirre Santaella, AlejandraDi Mauro, MattiaMirabal, NéstorNieto Castaño, DanielCharles, Eric524.8Dark matter experimentsDark matter simulationsDark matter theoryGamma ray experimentsDisruptionSubhaloesAstrofísica2101 Cosmología y CosmogoníaOne of the predictions of the ΛCDM cosmological framework is the hierarchical formation of structure, giving rise to dark matter (DM) halos and subhalos. When the latter are massive enough they retain gas (i.e., baryons) and become visible. This is the case of the dwarf satellite galaxies in the Milky Way (MW). Below a certain mass, halos may not accumulate significant amounts of baryons and remain completely dark. However, if DM particles are Weakly Interacting Massive Particles (WIMPs), we expect them to annihilate in subhalos, producing gamma rays which can be detected with the Fermi satellite. Using the three most recent point-source Fermi Large Area Telescope (LAT) catalogs (3FGL, 2FHL and 3FHL), we search for DM subhalo candidates among the unidentified sources, i.e., sources with no firm association to a known astrophysical object. We apply several selection criterio based on the expected properties of the DM-induced emission from subhalos, which allow us to significantly reduce the list of potential candidates. Then, by characterizing the mínimum detection flux of the instrument and comparing our sample to predictions from the Via Lactea II (VL-II) N-body cosmological simulation, we place conservative and robust constraints on the hσvi – m_(DM) parameter space. For annihilation via the τ ^(+)τ^(−) channel, we put an upper limit of 4 × 10^(26) (5 × 10^(25)) cm^(3)s^(−1) for a mass of 10 (100) GeV. A critical improvement over previous treatments is the repopulation we made to include low-mass subhalos below the VL-II mass resolution. With more advanced subhalo candidate filtering the sensitivity reach of our method can potentially improve these constraints by a factor 3 (2) for τ^( +)τ^(−) (b ̄b) channel.IOP PublishingDomínguez Díaz, AlbertoUniversidad Complutense de Madrid20192019-01-0120192019-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/88571reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)InglésengComunidad de Madrid http://dx.doi.org/10.13039/100012818 Atracción de Talento 2016-T1Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 SEV-2016-0597NASA Fermi multi-year Large Program 81303NASA Fermi one-year Program 91245NASA Fermi Guest Investigator Program (Cycle 7) NNX14AQ70GMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 Not available FPA2015-73913-JINAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PGC2018-095161-B-I00Red Consolider MultiDark FPA2017-90566-REDC Not availableDOE Not available DE-AC02-76SF00515open accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/885712026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope |
| title |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope |
| spellingShingle |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope Coronado Blázquez, Javier 524.8 Dark matter experiments Dark matter simulations Dark matter theory Gamma ray experiments Disruption Subhaloes Astrofísica 2101 Cosmología y Cosmogonía |
| title_short |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope |
| title_full |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope |
| title_fullStr |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope |
| title_full_unstemmed |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope |
| title_sort |
Unidentified gamma-ray sources as targets for indirect dark matter detection with the Fermi-Large Area Telescope |
| dc.creator.none.fl_str_mv |
Coronado Blázquez, Javier Sánchez Conde, Miguel Domínguez Díaz, Alberto Aguirre Santaella, Alejandra Di Mauro, Mattia Mirabal, Néstor Nieto Castaño, Daniel Charles, Eric |
| author |
Coronado Blázquez, Javier |
| author_facet |
Coronado Blázquez, Javier Sánchez Conde, Miguel Domínguez Díaz, Alberto Aguirre Santaella, Alejandra Di Mauro, Mattia Mirabal, Néstor Nieto Castaño, Daniel Charles, Eric |
| author_role |
author |
| author2 |
Sánchez Conde, Miguel Domínguez Díaz, Alberto Aguirre Santaella, Alejandra Di Mauro, Mattia Mirabal, Néstor Nieto Castaño, Daniel Charles, Eric |
| author2_role |
author author author author author author author |
| dc.contributor.none.fl_str_mv |
Domínguez Díaz, Alberto Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
524.8 Dark matter experiments Dark matter simulations Dark matter theory Gamma ray experiments Disruption Subhaloes Astrofísica 2101 Cosmología y Cosmogonía |
| topic |
524.8 Dark matter experiments Dark matter simulations Dark matter theory Gamma ray experiments Disruption Subhaloes Astrofísica 2101 Cosmología y Cosmogonía |
| description |
One of the predictions of the ΛCDM cosmological framework is the hierarchical formation of structure, giving rise to dark matter (DM) halos and subhalos. When the latter are massive enough they retain gas (i.e., baryons) and become visible. This is the case of the dwarf satellite galaxies in the Milky Way (MW). Below a certain mass, halos may not accumulate significant amounts of baryons and remain completely dark. However, if DM particles are Weakly Interacting Massive Particles (WIMPs), we expect them to annihilate in subhalos, producing gamma rays which can be detected with the Fermi satellite. Using the three most recent point-source Fermi Large Area Telescope (LAT) catalogs (3FGL, 2FHL and 3FHL), we search for DM subhalo candidates among the unidentified sources, i.e., sources with no firm association to a known astrophysical object. We apply several selection criterio based on the expected properties of the DM-induced emission from subhalos, which allow us to significantly reduce the list of potential candidates. Then, by characterizing the mínimum detection flux of the instrument and comparing our sample to predictions from the Via Lactea II (VL-II) N-body cosmological simulation, we place conservative and robust constraints on the hσvi – m_(DM) parameter space. For annihilation via the τ ^(+)τ^(−) channel, we put an upper limit of 4 × 10^(26) (5 × 10^(25)) cm^(3)s^(−1) for a mass of 10 (100) GeV. A critical improvement over previous treatments is the repopulation we made to include low-mass subhalos below the VL-II mass resolution. With more advanced subhalo candidate filtering the sensitivity reach of our method can potentially improve these constraints by a factor 3 (2) for τ^( +)τ^(−) (b ̄b) channel. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019 2019-01-01 2019 2019-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.14352/88571 |
| url |
https://hdl.handle.net/20.500.14352/88571 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.relation.none.fl_str_mv |
Comunidad de Madrid http://dx.doi.org/10.13039/100012818 Atracción de Talento 2016-T1 Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016 SEV-2016-0597 NASA Fermi multi-year Large Program 81303 NASA Fermi one-year Program 91245 NASA Fermi Guest Investigator Program (Cycle 7) NNX14AQ70G Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 Not available FPA2015-73913-JIN Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PGC2018-095161-B-I00 Red Consolider MultiDark FPA2017-90566-REDC Not available DOE Not available DE-AC02-76SF00515 |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
IOP Publishing |
| publisher.none.fl_str_mv |
IOP Publishing |
| dc.source.none.fl_str_mv |
reponame:Docta Complutense instname:Universidad Complutense de Madrid (UCM) |
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Universidad Complutense de Madrid (UCM) |
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Docta Complutense |
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