Investigating an extreme ULX detected in eRASS1
Abstract
Many of our key breakthroughs in understanding ultraluminous X-ray sources (ULXs) have come from observations of the more luminous 'extreme ULXs' (Lx = 10^40 - 10^41 erg/s). One means of better understanding ULXs is therefore to find new examples of this class that are located close enough for detailed observation. Here we propose a short (10 ks) Chandra observation of one such new eULX (d=9 Mpc) detected in eRASS1, which will provide two key diagnostics only obtainable with Chandra: a sub-arcsecond position that permits the identification of multi-wavelength counterparts, and the best determination of whether this is a single point source at the highest spatial resolution.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2022
- Bibcode:
- 2022cxo..prop.6338R
- Keywords:
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- Chandra Proposal ID #24620363