Transient radio signatures from neutron star encounters with QCD axion miniclusters

Edwards, Thomas D. P.; Kavanagh, Bradley James; Visinelli, Luca; Weniger, Christoph

doi:10.1103/PhysRevLett.127.131103

dc.contributor.author	Edwards, Thomas D. P.
dc.contributor.author	Kavanagh, Bradley James
dc.contributor.author	Visinelli, Luca
dc.contributor.author	Weniger, Christoph
dc.contributor.other	Universidad de Cantabria	es_ES
dc.date.accessioned	2024-01-29T08:47:51Z
dc.date.available	2024-01-29T08:47:51Z
dc.date.issued	2021
dc.identifier.issn	0031-9007
dc.identifier.issn	1079-7114
dc.identifier.uri	https://hdl.handle.net/10902/31278
dc.description.abstract	The QCD axion is expected to form dense structures known as axion miniclusters if the Peccei-Quinn symmetry is broken after inflation. Miniclusters that have survived until today will interact with neutron stars (NSs) in the Milky Way to produce transient radio signals from axion-photon conversion in the NS magnetosphere. We quantify the properties of these encounters and find that they occur frequently [Oð1?100Þday?1], last between a day and a few months, are spatially clustered toward the Galactic Center, and can reach observable fluxes. These radio transients are within reach of current generation telescopes and therefore offer a promising pathway to discovering QCD axion dark matter.	es_ES
dc.description.sponsorship	We thank Sebastian Baum, Gianfranco Bertone, Malte Buschmann, Matthew Lawson, David J. E. Marsh, M. C. David Marsh, Alexander Millar, Lina Necib, Ciaran O’Hare, Javier Redondo, and Ben Safdi for providing insightful comments. T. E. acknowledges support by the Vetenskapsrådet (Swedish Research Council) through Contract No. 638-2013-8993 and the Oskar Klein Centre for Cosmoparticle Physics. T. E. was also supported in part by the research environment grant “Detecting Axion Dark Matter in the Sky and in the Lab (AxionDM)” funded by the Swedish Research Council (VR) under Dnr 2019-02337. T. E. and C. W. are supported by the NWO through the VIDI research program “Probing the Genesis of Dark Matter” (680-47-5). L. V. is supported through the research program “The Hidden Universe of Weakly Interacting Particles” with Project No. 680.92.18.03 (NWOVrije Programma), which is partly financed by the Nederlandse Organisatie voor Wetenschappelijk Onderzoek (Dutch Research Council), and acknowledges support from the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Skłodowska-Curie Grant Agreement No. 754496 (H2020-MSCA-COFUND-2016 FELLINI). B. J. K. thanks the Spanish Agencia Estatal de Investigación (AEI, MICIU) for the support to the Unidad de Excelencia María de Maeztu Instituto de Física de Cantabria, ref. MDM-2017-0765. Some of this work was carried out on the Dutch national e-infrastructure with the support of SURF Cooperative.	es_ES
dc.format.extent	7 p.	es_ES
dc.language.iso	eng	es_ES
dc.publisher	American Physical Society	es_ES
dc.rights	Attribution 4.0 International © American Physical Society	es_ES
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	*
dc.source	Physical Review Letters, 2021, 127(13), 131103	es_ES
dc.title	Transient radio signatures from neutron star encounters with QCD axion miniclusters	es_ES
dc.type	info:eu-repo/semantics/article	es_ES
dc.relation.publisherVersion	https://doi.org/10.1103/PhysRevLett.127.131103	es_ES
dc.rights.accessRights	openAccess	es_ES
dc.identifier.DOI	10.1103/PhysRevLett.127.131103
dc.type.version	publishedVersion	es_ES