Investigating an extreme ULX detected in eRASS1
Abstract
The detection of pulsating ultraluminous X-ray sources (PULXs) has ledto a paradigm shift for the field; the key questions now revolve aroundthe demographics of ULXs (black holes vs neutron stars) and the detailsof their accretion physics. The detection of more PULXs is criticalto answering both questions. We have therefore mined the first eROSITAall-sky survey (eRASS1) with the intention of finding new PULX candidates.Here, we propose a 30 ks observation of a new extreme ULX (L(X) > 10^40erg/s) detected in each of eRASS1, 2 and 3 with a high enough flux tomake sensitive accelerated pulsation searches very viable, and thusdetermine whether it is a PULX.
- Publication:
-
XMM-Newton Proposal
- Pub Date:
- October 2021
- Bibcode:
- 2021xmm..prop...68R