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Remnants of galactic subhalos and their impact on indirect dark-matter searches

Author
Stref, Martin; Lacroix, Thomasuntranslated; Lavalle, Julien
Entity
UAM. Departamento de Física Teórica
Publisher
M D P I AG
Date
2019-01-01
Citation
Galaxies 7.2 (2019):65
ISSN
2075-4434
DOI
10.3390/galaxies7020065
Funded by
J.L. and M.S. are partly supported by the Agence Nationale pour la Recherche (ANR) Project No. ANR-18-CE31-0006, the Origines, Constituants, et EVolution de l’Univers (OCEVU) Labex (No. ANR-11-LABX-0060), the CNRS IN2P3-Theory/INSU-PNHE-PNCG project “Galactic Dark Matter,” and the European Union’s Horizon 2020 Research and Innovation Program under Marie Skłodowska-Curie Grant Agreements No. 690575 and No. 674896, in addition to recurrent funding by the Centre National de la Recherche Scientifique (CNRS) and the University of Montpellier. T.L. is supported by the European Union’s Horizon 2020 Research and Innovation Program under the Marie Skłodowska-Curie grant agreement No. 713366. The work of TL was also supported by the Spanish Agencia Estatal de Investigación through grants PGC2018-095161-B-I00, IFT Centro de Excelencia Severo Ochoa SEV-2016-0597, and Red Consolider MultiDark FPA2017-90566-REDC
Project
Gobierno de España. PGC2018-095161-B-I00; Gobierno de España. SEV-2016-0597; Gobierno de España. FPA2017-90566-REDC; info:eu-repo/grantAgreement/EC/H2020/690575/EU//InvisiblesPlus; info:eu-repo/grantAgreement/EC/H2020/674896/EU//ELUSIVES; info:eu-repo/grantAgreement/EC/H2020/713366/EU//InterTalentum
Editor's Version
https://doi.org/10.3390/galaxies7020065
Subjects
Indirect searches; Particle dark matter; Subhalos; Física
URI
http://hdl.handle.net/10486/690680
Rights
© 2018 by the authors

Licencia Creative Commons
Esta obra está bajo una Licencia Creative Commons Atribución 4.0 Internacional.

Abstract

Dark-matter subhalos, predicted in large numbers in the cold-dark-matter scenario, should have an impact on dark-matter-particle searches. Recent results show that tidal disruption of these objects in computer simulations is overefficient due to numerical artifacts and resolution effects. Accounting for these results, we re-estimated the subhalo abundance in the Milky Way using semianalytical techniques. In particular, we showed that the boost factor for gamma rays and cosmic-ray antiprotons is increased by roughly a factor of two
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Google™ Scholar:Stref, Martin - Lacroix, Thomas - Lavalle, Julien

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