23–26 Jun 2023
University of Hong Kong, Centennial Campus, CPD 3.04
Asia/Hong_Kong timezone

New Results on Astrophysical Black Holes from eROSITA

23 Jun 2023, 10:40
35m

Speaker

Prof. Kirpal Nandra

Description

The eROSITA X-ray telescope was launched in July 2019 aboard the Spektrum-RG satellite. After a short performance verification phase, it has subsequently performed an X-ray all-sky survey of unprecedented depth. Accreting supermassive black holes in active galactic nuclei (AGN) constitute the most numerous class of sources detected by eROSITA. The high sensitivity and large field of view of the instrument provide large sample sizes enabling robust statistical studies of the X-ray AGN population, as well as the first significant samples of the rarest objects, e.g. those at high redshift. The distinctive temporal sampling pattern provided by the survey also provides unique information about the variability of the X-ray sky. In this presentation, early AGN results from eROSITA will be reviewed. These have confirmed its potential to yield new insights into black hole demographics and accretion physics, and yielded a number of surprising new discoveries.

Co-author

eROSITA team

Presentation materials