Abstract
The rapid and seemingly random fluctuations in X-ray luminosity of Seyfert galaxies provided early support for the standard model in which Seyferts are powered by a supermassive black hole fed from an accretion disc. However, since EXOSAT there has been little opportunity to advance our understanding of the most rapid X-ray variability. Observations with XMM-Newton have changed this.
We discuss some recent results obtained from XMM-Newton observations of Seyfert 1 galaxies. Particular attention will be given to the remarkable similarity found between the timing properties of Seyferts and black hole X-ray binaries, including the power spectrum and the cross spectrum (time delays and coherence), and their implications for the physical processes at work in Seyferts.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Barr, P. and Mushotzky, R.F.: 1986, Nature 320, 421.
Belloni, T. and Hasinger, G.: 1990, A&A 227, L33.
Cui, W., Zhang, S.N., Focke, W. and Swank, J.H.: ApJ 484, 383.
Green, A.R., McHardy, I.M. and Lehto, H.J.: 1993, MNRAS 265, 664.
Jansen, F. et al.: 2001, A&A 365, L1.
Kotov, O., Churazov, E. and Gilfanov, M.: 2001, MNRAS 327, 799.
Lawrence, A., Watson, M.G., Pounds, K.A. and Elvis, M.: 1987, Nature 325, 694.
Lawrence, A. and Papadakis, I.: 1993, ApJ 414, L85.
Markowitz, A. et al.: 2003, ApJ 593, 96.
McClintock, J.E. and Remillard, R.A.: 2004, in: W.H.G. Lewin and M. van der Klis (eds.), Compact Stellar X-ray Sources, Cambridge University Press, Cambridge, in press (astro-ph/0306213).
McHardy, I. M.: 1989, in: J. Hunt and B. Battrick (eds.), Two Topics in X Ray Astronomy, (ESA SP-296; Noordwijk: ESA), p. 1111.
McHardy, I.M., Papadakis, I.E., Uttley, P., Page, M. and Mason, K.: 2004, MNRAS 348, 783.
Nandra, K. and Papadakis, I.E.: 2001, ApJ 554, 710.
Nowak, M.A. and Vaughan, B.A.: 1996, MNRAS 280, 227.
Nowak, M.A., Vaughan, B.A., Wilms, J., Dove, J.B., and Begelman, M.C.: 1999, ApJ 510, 874.
Papadakis, I.E., Nandra, K. and Kazanas, D.: 2001, ApJ 554, L133.
Poutanen, J. and Fabian, A.C.: 1999, MNRAS 306, L31.
Press, W.H.: 1978, Comments on Astrophysics 7, 103.
Rees, M.J.: 1984, ARA&A 22, 471.
Revnivtsev, M., Gilfanov, M. and Churazov, E.: 2000, A&A 363, 1013.
Uttley, P. and McHardy I.M.: 2001, MNRAS 323, L26.
Uttley, P., McHardy, I.M. and Papadakis I.: 2002, MNRAS 332, 231.
van der Klis M.: 1989, in: H. Ogelman, and E.P.J. van den Heuvel (eds.), Timing Neutron Stars, Kluwer, Dordrecht, NATO ASI Series C 262, p. 27.
Vaughan, B.A. and Nowak, M.A., 1997, ApJ 474, L43.
Vaughan, S. and Fabian, A.C.: 2003, MNRAS 341, 496.
Vaughan, S., Fabian, A.C. and Nandra, K.: 2003, MNRAS 339, 1237.
Vaughan, S., Iwasawa, K., Fabian, A.C. and Hayashida, K.: 2004, MNRAS submitted.
Vignali, C., Brandt, W. N., Boller, Th., Fabian, A.C. and Vaughan, S.: 2004, MNRAS 347, 854.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2005 Springer
About this chapter
Cite this chapter
Vaughan, S., Fabian, A.C., Iwasawa, K. (2005). Rapid X-ray variability of Seyfert 1 Galaxies. In: Maccarone, T.J., Fender, R.P., Ho, L.C. (eds) Astrophysics and Space Science. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4085-7_14
Download citation
DOI: https://doi.org/10.1007/1-4020-4085-7_14
Received:
Accepted:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-4084-9
Online ISBN: 978-1-4020-4085-6
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)