X-Ray Searches for Axions from Super Star Clusters
Axions may be produced in abundance inside stellar cores and then convert into observable x rays in the Galactic magnetic fields. We focus on the Quintuplet and Westerlund 1 super star clusters, which host large numbers of hot, young stars including Wolf-Rayet stars; these stars produce axions effic...
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| Veröffentlicht in: | Physical review letters 2020-12, Vol.125 (26), p.261102-261102, Article 261102 |
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| container_title | Physical review letters |
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| creator | Dessert, Christopher Foster, Joshua W Safdi, Benjamin R |
| description | Axions may be produced in abundance inside stellar cores and then convert into observable x rays in the Galactic magnetic fields. We focus on the Quintuplet and Westerlund 1 super star clusters, which host large numbers of hot, young stars including Wolf-Rayet stars; these stars produce axions efficiently through the axion-photon coupling. We use Galactic magnetic field models to calculate the expected x-ray flux locally from axions emitted from these clusters. We then combine the axion model predictions with archival Nuclear Spectroscopic Telescope Array (NuSTAR) data from 10-80 keV to search for evidence of axions. We find no significant evidence for axions and constrain the axion-photon coupling g_{aγγ}≲3.6×10^{-12} GeV^{-1} for masses m_{a}≲5×10^{-11} eV at 95% confidence. |
| doi_str_mv | 10.1103/PhysRevLett.125.261102 |
| format | Article |
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| source | American Physical Society Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Astronomical models ASTRONOMY AND ASTROPHYSICS axions Coupling Interstellar magnetic fields interstellar medium Photons Spectroscopic telescopes Star clusters Stellar cores stellar interior Stellar magnetic fields Wolf-Rayet stars x-ray astronomy X-rays |
| title | X-Ray Searches for Axions from Super Star Clusters |
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