Hostname: page-component-77c89778f8-m8s7h Total loading time: 0 Render date: 2024-07-24T04:15:49.610Z Has data issue: false hasContentIssue false

Wind Accretion vs Roche Lobe Overflow in HMXBs

Published online by Cambridge University Press:  12 April 2016

John M. Blondin
Affiliation:
Dept. of Physics, North Carolina State University, Raleigh, NC 27695
Michael P. Owen
Affiliation:
Dept. of Physics, North Carolina State University, Raleigh, NC 27695

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present a series of time-dependent 2D and 3D numerical simulations illustrating the evolutionary sequence between high mass X-ray binaries fed by wind accretion (where the primary star sits well within its critical tidal lobe) and those fed by Roche lobe overflow (where the primary star extends out to its tidal lobe). When the primary lies well within its critical surface we find negligible tidal mass loss enhancement, and a system that is characterized by wind accretion with the development of a photoionization zone around the compact object. As the surface of the primary nears the critical surface, we observe tidally enhanced mass loss via a thin tidal stream, resulting in higher accretion wake densities. For full RLOF we observe the development of a steady accretion disk characterized by a total shadowing of the X-rays in the orbital plane.

Type
Part 8. X-Ray Binaries, Transients and Super-Soft Sources
Copyright
Copyright © Astronomical Society of the Pacific 1997

References

Blondin, J.M., Kallman, T.R., Fryxell, B.A., & Taam, R.E. 1990, ApJ, 356, 591 Google Scholar
Layton, J.T., Blondin, J.M., & Owen, M.P. 1996, NewA, submittedGoogle Scholar
Nelson, R.W. 1996, this volumeGoogle Scholar
Owen, M.P. & Blondin, J.M. 1997, in preparationGoogle Scholar