Detecting New Hyper-Luminous X-ray Sources Among Low-Luminosity AGN ignitions
Abstract
We propose three ToOs (40 ks each) to follow up on luminous extragalacticX-ray ignitions, with the aim of detecting new Hyper-Luminous X-raysources (HLXs). During the all-sky scans of eROSITA, ignition eventswith a luminosity range log(Lx/[erg cm^-2])=41.5--42 were detected inlocal galaxies. This luminosity range is of particular interest as itcovers the overlap of HLXs and low-luminosity AGN. The nuclei of thehost galaxies of these ignition events showed no change in their opticalspectra, when comparing before and after the X-ray brightening. Theproposed pilot study investigates whether HLXs are in fact responsiblefor these ignitions. This programme has the potential to triple thenumber of objects at the extreme end of the Lx range.
- Publication:
-
XMM-Newton Proposal
- Pub Date:
- October 2021
- Bibcode:
- 2021xmm..prop..180H