Macroscopic dark matter is almost unconstrained over a wide ``asteroid-like'' mass range, where it could scatter on baryonic matter with geometric cross section. When such an object travels through a star, it produces shock waves which reach the stellar surface, leading to a distinctive transient optical, UV and X-ray emission. I shall talk about how this signature can be searched for on a variety of stellar types and locations. In a dense globular cluster, such events occur far more often than flare backgrounds. Existing UV telescopes, like Hubble, could probe orders of magnitude in dark matter mass in one week of dedicated observation.
|Reference to paper (DOI or arXiv)||https://arxiv.org/abs/2106.09033|