Searches for Axion-Like Particles with NGC1275: Current and Future Bounds
Abstract
Galaxy clusters contain large magnetic fields that make them excellent targets to search for ultralight Axion-Like Particles (ALPs). ALP-photon interconversion imprints quasi-sinusoidal oscillations on the X-ray spectra of point sources in or behind the cluster. The absence of substantial oscillations allows us to place bounds on $g_{a \gamma \gamma}$. Here the bounds from the {\it Chandra} X-ray observations of NGC1275 are presented, as well as those predicted for the {\it Athena} X-ray observatory, due to launch in 2028.
- Publication:
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arXiv e-prints
- Pub Date:
- November 2017
- DOI:
- 10.48550/arXiv.1711.02208
- arXiv:
- arXiv:1711.02208
- Bibcode:
- 2017arXiv171102208J
- Keywords:
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- Astrophysics - High Energy Astrophysical Phenomena;
- High Energy Physics - Phenomenology
- E-Print:
- Contributed to the 13th Patras Workshop on Axions, WIMPs and WISPs, Thessaloniki, May 15 to 19, 2017