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Communication Dans Un Congrès Année : 2021

Direct Detection of Dark Asteroid

Résumé

Macroscopic dark matter is almost unconstrained over a wide “asteroid-like” mass range, where it could scatter on baryonic matter with geometric cross section. We show that 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. 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, and an existing UV telescope could probe orders of magnitude in dark matter mass in one week of dedicated observation.

Dates et versions

hal-03591365 , version 1 (28-02-2022)

Identifiants

Citer

Anirban Das, Sebastian A.R. Ellis, Philip C. Schuster, Kevin Zhou. Direct Detection of Dark Asteroid. 17th International Conference on Topics in Astroparticle and Underground Physics, Aug 2021, Valencia, Spain. pp.012037, ⟨10.1088/1742-6596/2156/1/012037⟩. ⟨hal-03591365⟩
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