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Simulating AXAF Grating Spectra of Accreting White Dwarfs

Published online by Cambridge University Press:  05 March 2013

Allyn F. Tennant ,
Kinwah Wu ,
Stephen L. O'Dell  and
Martin C. Weisskopf
Allyn F. Tennant
Affiliation:
ES-84 Space Science Laboratory, NASA Marshall Space Flight Center, Huntsville, AL 35812, USA; allyn.tennant@msfc.nasa.gov
Kinwah Wu
Affiliation:
Research Centre for Theoretical Astrophysics, School of Physics, University of Sydney, NSW 2006, Australia; kinwah@physics.usyd.edu.au
Stephen L. O'Dell
Affiliation:
ES-84 Space Science Laboratory, NASA Marshall Space Flight Center, Huntsville, AL 35812, USA; odell@cosmos.msfc.nasa.gov
Martin C. Weisskopf
Affiliation:
ES-01 Space Science Laboratory, NASA Marshall Space Flight Center, Huntsville, AL 35812, USA; martin@smoker.msfc.nasa.gov
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Abstract

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We present simulated AXAF spectra of accreting white dwarfs, using parameters appropriate for magnetic cataclysmic variables. The very high spectral resolution that can be obtained with the High-Energy Transmission Grating of AXAF can resolve the keV X-ray emission lines that characterise the temperature, density and velocity profiles of the shock-heated emission regions of these systems. These simulations demonstrate that actual spectra will allow us to place constraints on the white-dwarf mass and the accretion rate of the systems. The high-resolution spectra also allow the measurement of the velocity of the accretion flow in regions close to the white-dwarf surface.

Keywords

accretionstars: binaries: closestars: white dwarfsdata analysis
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 15 , Issue 3 , 1998 , pp. 339 - 347
Copyright
Copyright © Astronomical Society of Australia 1998

References

Arnaud, K. A. 1996, in Astronomical Data Analysis Software and Systems V, eds G. Jacoby & J. Barnes, ASP Conf. Series 101 (San Francisco: ASP), p. 17 Google Scholar
Chanmugam, G. 1992, ARA&A, 30, 143 Google Scholar
Cropper, M. 1990, Space Sci. Rev., 54, 195 CrossRefGoogle Scholar
Cropper, M., Ramsay, G., & Wu, K. 1998, MNRAS, 293, 222 CrossRefGoogle Scholar
Done, C., Osborne, J. P., & Beardmore, A. P. 1995, MNRAS, 276, 483 Google Scholar
Fujimoto, R., & Ishida, M. 1997, ApJ, 474, 774 CrossRefGoogle Scholar
Ishida, M. 1991, PhD Thesis, University of Tokyo Google Scholar
Ishida, M. 1997, in X-ray Imaging and Spectroscopy of Cosmic Hot Plasmas, eds F. Makino & K. Mitsuda (Tokyo: Universal Academy Press), p. 537 Google Scholar
Lumb, D. H., et al. 1993, Proc. SPIE, 2006, 265 CrossRefGoogle Scholar
Markert, T. H., et al. 1994, in EUV, X-ray and Gamma-ray Instrumentation for Astronomy V, eds O. H. W. Siegmund & J. V. Vallerga, Proc. SPIE, 2280, 168 Google Scholar
Mewe, R. 1990, in Physical Process in Hot Cosmic Plasmas, NATO ASI Series, eds W. Brinkmann et al. (Dordrecht: Kluwer), p. 39 Google Scholar
Mewe, R., Gronenschild, E. H. B. M., & van den Oord, G. H. J. 1985, A&AS, 62, 197 Google Scholar
Mewe, R., Kaastra, D. S., & Liedahl, D. A. 1995, Legacy (Journal of HEASARC), 6, 16 Google Scholar
Mukai, K., Ishida, M., & Osborne, J. 1997, in X-ray Imaging and Spectroscopy of Cosmic Hot Plasmas, eds F. Makino & K. Mitsuda (Tokyo: Universal Academy Press), p. 543 Google Scholar
Nauenberg, M. 1972, ApJ, 175, 417 Google Scholar
Tanaka, Y., Inoue, H., & Holt, S. S. 1994, PASJ, 46, L47 Google Scholar
van Teeseling, A., Kaastra, J. S., & Heise, J. 1996, A&A, 312, 186 Google Scholar
Weisskopf, M. C., O'Dell, S. L., Elsner, R. F., & Van Speybroeck, L. P. 1995, Proc. SPIE, 2515, 312 Google Scholar
Weisskopf, M. C., O'Dell, S. L., & Van Speybroeck, L. P. 1996, Proc. SPIE, 2805, 2 Google Scholar
Wilson, R. 1962, Quant. Spectr. Rad. Transf., 2, 477 Google Scholar
Wu, K. 1994, PASA, 11, 61 CrossRefGoogle Scholar
Wu, K., Chanmugam, G., & Shaviv, G. 1994, ApJ, 426, 664 Google Scholar
Wu, K., Cropper, M., & Ramsay, G. 1998, in preparationGoogle Scholar