Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-22T23:13:14.787Z Has data issue: false hasContentIssue false
  • English
  • Français

Comptonisation and Time-lags in Multi-temperature Plasmas Surrounding Compact Objects

Published online by Cambridge University Press:  05 March 2013

Jason Cullen
Jason Cullen*
Affiliation:
Special Research Centre for Theoretical Astrophysics, School of Physics, University of Sydney, Sydney, NSW 2006, Australia; [email protected] Sir Frank Packer Department of Theoretical Physics, School of Physics, University of Sydney, Sydney, NSW 2006, Australia
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.

This paper investigates a recent model proposed by Moskalenko, Collmar & Schönfelder (1998) for the plasma surrounding galactic black hole candidates. Using a linear Monte Carlo code, the spectral and temporal behaviour of the model is found for the case where the plasma geometry consists of a hot shell surrounding a cooler spherical core. The spectrum produced by this model at X-ray and gamma-ray energies is obtained numerically. Also found for the first time in this geometry are the photon time-lags between two energy bands due to rapid aperiodic variability. It is argued that the time-lag information may be able to determine whether this particular geometry is a realistic model for the material surrounding galactic black hole candidates.

Keywords

black hole physicsX-rays: starsplasmasgamma-rays: theoryradiative transferaccretion
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 17 , Issue 1 , 2000 , pp. 48 - 55
Copyright
Copyright © Astronomical Society of Australia 2000

References

Bisnovatyi-Kogan, G. S., & Blinnikov, S. I. 1976, Soviet Astron. Lett., 2, 191 Google Scholar
Böttcher, M., & Liang, E. P. 1998, ApJ, 506, 281 Google Scholar
Böttcher, M., & Liang, E. P. 1999, ApJ, 511, L37 Google Scholar
Dove, J. B., Wilms, J., Maisack, M., & Begelman, M. C. 1997, ApJ, 487, 759 CrossRefGoogle Scholar
Esin, A. A., Narayan, R., Cui, W., Grove, J. E., & Zhang, S. 1998, ApJ, 505, 854 Google Scholar
Kazanas, D., Hua, X. M., & Titarchuk, L. G. 1997, ApJ, 480, 735 Google Scholar
Miyamoto, S., Kitamoto, S., Mitsuda, K., & Dotani, T. 1988, Nature, 336, 450 Google Scholar
Moskalenko, I. V., Collmar, W., & Schönfelder, V. 1998, ApJ, 502, 428 CrossRefGoogle Scholar
Pozdnyakov, L. A., Sobol', I. M., & Sunyaev, R. A. 1983, Ap&SS Reviews, 2, 189 Google Scholar
Sunyaev, R. A., & Titarchuk, L. G. 1980, A&A, 86, 121 Google Scholar
Tanaka, Y., & Lewin, W. H. G. 1995, in X-Ray Binaries, Cambridge Astrophysics Series, Vol. 26, ed. W. H. G. Lewin et al. (Cambridge Univ. Press), p. 126 Google Scholar
van der Hooft, F., et al. 1999, ApJ, in press, astro-ph/9810492Google Scholar
van der Klis, M., Hasinger, G., Stella, L., Langmeier, A., van Paradijs, J., & Lewin, W. H. G. 1987, ApJ, 319, L13 CrossRefGoogle Scholar