Axion-photon multimessenger astronomy with giant flares
High Energy Physics - Phenomenology2022-09-14v4Cosmology and Nongalactic AstrophysicsHigh Energy Astrophysical PhenomenaHigh Energy Physics - Experiment
We treat prospects for multimessenger astronomy with giant flares (GFs), a rare transient event featured by magnetars that can be as luminous as a hundred of the brightest supernovae ever observed. The beamed photons could correlate with an axion counterpart via resonant conversion in the magnetosphere. In a realistic parameter space, we find that the sensitivity limit to galactic GFs for currently viable experiments is gϕγ≳several×10−13 GeV−1 \& gϕe≳few×10−12. We rule out the compatibility of axion flares with the recent XENON1T excess only due to the time persistence of the signal.
@article{arxiv.2201.04059,
title = {Axion-photon multimessenger astronomy with giant flares},
author = {Javier De Miguel and Chiko Otani},
journal= {arXiv preprint arXiv:2201.04059},
year = {2022}
}