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Article: Constraining Annihilating Dark Matter Mass by the Radio Continuum Spectral Data of a High-redshift Galaxy Cluster

TitleConstraining Annihilating Dark Matter Mass by the Radio Continuum Spectral Data of a High-redshift Galaxy Cluster
Authors
KeywordsCosmic Rays
Dark Matter
Antiprotons
Issue Date2020
PublisherAmerican Astronomical Society, co-published with Institute of Physics Publishing, Inc. The Journal's web site is located at http://iopscience.iop.org/0004-637X/
Citation
The Astrophysical Journal, 2020, v. 900 n. 2, article no. 126 How to Cite?
AbstractIn the past decade, the properties of annihilating dark matter models were examined by various kinds of data, including the data of gamma-rays, radio waves, X-rays, positrons, electrons, antiprotons and neutrinos. In particular, most of the studies focus on the data of our Galaxy, nearby galaxies (e.g., M31 galaxy) or nearby galaxy clusters (e.g., Fornax cluster). In this article, we examine the archival radio continuum spectral data of a relatively high-redshift galaxy cluster (A697 cluster) to constrain the properties of annihilating dark matter. We find that leptophilic annihilation channels (e + e −, μ + μ −, and τ + τ −) can give very good fits to the radio continuum spectrum of the A697 cluster.
Persistent Identifierhttp://hdl.handle.net/10722/289326
ISSN
2023 Impact Factor: 4.8
2023 SCImago Journal Rankings: 1.905
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChan, MH-
dc.contributor.authorLee, CM-
dc.contributor.authorNg, SCY-
dc.contributor.authorLeung, CS-
dc.date.accessioned2020-10-22T08:11:04Z-
dc.date.available2020-10-22T08:11:04Z-
dc.date.issued2020-
dc.identifier.citationThe Astrophysical Journal, 2020, v. 900 n. 2, article no. 126-
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/10722/289326-
dc.description.abstractIn the past decade, the properties of annihilating dark matter models were examined by various kinds of data, including the data of gamma-rays, radio waves, X-rays, positrons, electrons, antiprotons and neutrinos. In particular, most of the studies focus on the data of our Galaxy, nearby galaxies (e.g., M31 galaxy) or nearby galaxy clusters (e.g., Fornax cluster). In this article, we examine the archival radio continuum spectral data of a relatively high-redshift galaxy cluster (A697 cluster) to constrain the properties of annihilating dark matter. We find that leptophilic annihilation channels (e + e −, μ + μ −, and τ + τ −) can give very good fits to the radio continuum spectrum of the A697 cluster.-
dc.languageeng-
dc.publisherAmerican Astronomical Society, co-published with Institute of Physics Publishing, Inc. The Journal's web site is located at http://iopscience.iop.org/0004-637X/-
dc.relation.ispartofThe Astrophysical Journal-
dc.subjectCosmic Rays-
dc.subjectDark Matter-
dc.subjectAntiprotons-
dc.titleConstraining Annihilating Dark Matter Mass by the Radio Continuum Spectral Data of a High-redshift Galaxy Cluster-
dc.typeArticle-
dc.identifier.emailNg, SCY: ncy@astro.physics.hku.hk-
dc.identifier.authorityNg, SCY=rp01706-
dc.description.naturepostprint-
dc.identifier.doi10.3847/1538-4357/aba74b-
dc.identifier.scopuseid_2-s2.0-85091250457-
dc.identifier.hkuros315975-
dc.identifier.volume900-
dc.identifier.issue2-
dc.identifier.spagearticle no. 126-
dc.identifier.epagearticle no. 126-
dc.identifier.isiWOS:000570661700001-
dc.publisher.placeUnited States-
dc.identifier.issnl0004-637X-

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