12–23 Jul 2021
Online
Europe/Berlin timezone

Searching for isolated black holes in the Milky Way

20 Jul 2021, 12:00
1h 30m
07

07

Talk DM | Dark Matter Discussion

Speaker

Francesca Scarcella (IFT UAM-CSIC)

Description

Primordial Black Holes (PBHs) have been proposed as a Dark Matter (DM) candidate. Even if they constitute only a component of the DM, their detection would have major implications for fundamental Physics. If a component of the DM is in the form of PBHs, we expect a significant portion of this black hole population to be present at the center of our Galaxy, a region rich of dense molecular clouds. Black holes located within a cloud will accrete the dense interstellar gas, which will emit radiation during the process. In this work, we study the possibility of detecting isolated accreting black holes in the Milky Way through this radiation. We focus on the radio and X-ray bands, considering existing catalogs and future experimental prospects. To model the accretion, we adopt the state-of-the-art model of Park-Ricotti, backed up by numerical simulations. We consider different mass functions for the PBHs and compare the results with those obtained for the black hole population of astrophysical origin.
Partially based on arXiv:2012.10421

Keywords

Primordial black holes; accretion; Milky Way

Subcategory Theoretical Results

Primary author

Francesca Scarcella (IFT UAM-CSIC)

Co-author

Presentation materials