Please use this identifier to cite or link to this item: https://open.uns.ac.rs/handle/123456789/10878
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dc.contributor.authorEckner C.en
dc.contributor.authorSerpico P.en
dc.contributor.authorPetrovic J.en
dc.contributor.authorProdanović, Tijanaen
dc.date.accessioned2020-03-03T14:41:43Z-
dc.date.available2020-03-03T14:41:43Z-
dc.date.issued2017-01-01en
dc.identifier.urihttps://open.uns.ac.rs/handle/123456789/10878-
dc.description.abstract© Copyright owned by the author(s). A new measurement of a spatially extended gamma-ray signal from the center of M31 was published recently (Ackermann et al. 2017, ApJ 836, 208), reporting that the emission broadly resembles the Galactic center excess (GCE) of the Milky Way (MW). In this contribution we discuss the possibilities that the signal originates from a population of millisecond pulsars (MSPs), or alternatively the annihilation of dark matter (DM) particles. As an astrophysical interpretation in terms of MSPs appears viable, we derive upper limits on the annihilation cross section in the bb/τ+τ−-channel of weakly interacting massive particles (WIMPs) in a mass range from 1 GeV to 10 TeV, taking into consideration different DM density profiles and including the effect of substructure and adiabatic contraction.en
dc.relation.ispartofProceedings of Scienceen
dc.titleM31 gamma-ray emission - a closer look at different explanationsen
dc.typeConference Paperen
dc.identifier.scopus2-s2.0-85076585658en
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/85076585658en
item.fulltextNo Fulltext-
item.grantfulltextnone-
crisitem.author.deptPrirodno-matematički fakultet, Departman za fiziku-
crisitem.author.parentorgPrirodno-matematički fakultet-
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