Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-24T16:10:25.111Z Has data issue: false hasContentIssue false
  • English
  • Français

Accretion disk and stream origin of the dip phenomenon in Hercules X-1

Published online by Cambridge University Press:  21 February 2013

D. A. Leahy  and
C. D. Igna
D. A. Leahy
Affiliation:
Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, T2N 1N4, Canada email: [email protected]
C. D. Igna
Affiliation:
Dept. of Astronomy, University, add USA email: zz@asxxxe
Rights & Permissions [Opens in a new window]

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.

The Rossi X-ray Timing Explorer has observed Hercules X-1 over a period of about 13 years, allowing detailed measurement of the properties of the dip phenomenon. We construct a model for the dips based on the impact between the accretion stream and the disk, including the geometry and dynamics of the stream and disk. We also consider the case where the stream penetrates the outer parts of the disk, where its density is low, and proceeds to a second impact at smaller radius in the disk. The results from the model are discussed and compared to the observed properties of the dips.

Keywords

Accretionaccretion disksX-rays: binariesstars: neutron
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 125 - 128
Copyright
Copyright © International Astronomical Union 2013

References

Gerend, D. & Boynton, P. E. 1976, The Astrophysical Journal, 209, 562Google Scholar
Igna, C. D. 2011, PhD. Thesis, University of CalgaryGoogle Scholar
Igna, C. D. & Leahy, D. A. 2011, Monthly Notices of the Royal Astronomical Society, 418, 2283Google Scholar
Igna, C. D. & Leahy, D. A. 2012, Monthly Notices of the Royal Astronomical Society, 425, 8Google Scholar
Leahy, D. A. 2002, Monthly Notices of the Royal Astronomical Society, 334, 847CrossRefGoogle Scholar
Leahy, D. A. 2003, Monthly Notices of the Royal Astronomical Society, 342, 446Google Scholar
Leahy, D. A. 2004, Monthly Notices of the Royal Astronomical Society, 348, 932Google Scholar
Leahy, D. A. 2004, The Astrophysical Journal, 613, 517CrossRefGoogle Scholar
Leahy, D. A. & Igna, C. D. 2010, The Astrophysical Journal, 713, 318CrossRefGoogle Scholar
Leahy, D. A. & Igna, C. 2011, The Astrophysical Journal, 736, 74CrossRefGoogle Scholar
Lubow, S. H. & Shu, F. H. 1975, The Astrophysical Journal, 198, 383CrossRefGoogle Scholar
Petterson, J. A. 1975, The Astrophysical Journal Letters, 201, L61CrossRefGoogle Scholar
Scott, D. M. & Leahy, D. A. 1999, The Astrophysical Journal, 510, 974CrossRefGoogle Scholar
Scott, D. M., Leahy, D. A., & Wilson, R. B. 2000, The Astrophysical Journal, 539, 392Google Scholar