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Transient radio signatures from neutron star encounters with QCD axion miniclusters

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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 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

Autoría

EDWARDS, THOMAS D. P.

BRADLEY JAMES KAVANAGH

VISINELLI, LUCA

WENIGER, CHRISTOPH