Pulse Brain · Growing Health Evidence Index
Peer-reviewed

The thermal-radiative wind in low-mass X-ray binary H1743−322: radiation hydrodynamic simulations

Ryota Tomaru, Chris Done, Ken Ohsuga, Mariko Nomura, Tadayuki Takahashi

Monthly Notices of the Royal Astronomical Society · 2019

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Summary

Abstract Blueshifted absorption lines are seen in high inclination black hole binary systems in their disc-dominated states, showing these power an equatorial disc wind. While some contribution from magnetic winds remain a possibility, thermal and thermal-radiative winds are expected to be present. We show results from radiation hydrodynamic simulations that show that the additional radiation force from atomic features (bound–free and lines) is important along with electron scattering. Together, these increase the wind velocity at high inclinations, so that they quantitatively match the observations in H1743−322, unlike purely thermal winds that are too slow. We highlight the role played by shadowing of the outer disc from the (subgrid) inner disc Compton heated layer, and show that the in

Source type
Peer-reviewed study
DOI
10.1093/mnras/stz2738
Catalogue ID
BFmoakvhek-t74k4x
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