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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.
Autoría: Edwards T.D. ., Kavanagh B.J., Visinelli L., Weniger C.,
Fuente: Physical Review Letters, 2021, 127(13), 131103
Editorial: American Physical Society
Año de publicación: 2021
Nº de páginas: 7
Tipo de publicación: Artículo de Revista
DOI: 10.1103/PhysRevLett.127.131103
ISSN: 0031-9007,1079-7114
Url de la publicación: https://doi.org/10.1103/PhysRevLett.127.131103
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EDWARDS, THOMAS D. P.
BRADLEY JAMES KAVANAGH
VISINELLI, LUCA
WENIGER, CHRISTOPH
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