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arXiv · 2310.15997

Probing extreme black-hole outflows on short timescales via high spectral-resolution X-ray imagers

Ciro Pinto·James F. Steiner·Arash Bodaghee·Priyanka Chakraborty·Malgosia Sobolewska·Dheeraj R. Pasham·Anna Ogorzalek·John Zuhone·Akos Bogdan·Mark Vogelsberger
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Abstract

We investigate outflows and the physics of super-Eddington versus sub-Eddington regimes in black hole systems. Our focus is on prospective science using next-generation high-resolution soft X-ray instruments. We highlight the properties of black hole ultraluminous X-ray source (ULX) systems in particular. Owing to scale invariance in accreting black holes, ULX accretion properties including their outflows, inform our understanding not only of the closely-related population of (similar-mass) X-ray binary systems, but also of tidal disruption events (TDEs) around supermassive black holes. A subsample of TDEs are likely to transcend super-Eddington to sub-Eddington regimes as they evolve, offering an important unifying analog to ULXs and sub-Eddington X-ray binaries. We demonstrate how next-generation soft X-ray observations with resolving power > 1000 and collecting area > 1000 cm^2 can simultaneously identify ultrafast and more typical wind components, distinguish between different wind mechanisms, and constrain changing wind properties over characteristic variability timescales.

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Ciro Pinto, James F. Steiner, Arash Bodaghee, Priyanka Chakraborty, Malgosia Sobolewska, Dheeraj R. Pasham, Anna Ogorzalek, John Zuhone, Akos Bogdan, Mark Vogelsberger. 2023-10-24. Probing extreme black-hole outflows on short timescales via high spectral-resolution X-ray imagers. https://doi.org/10.1002/asna.20240027

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