Modeling the X-ray variability in MCG-6-30-15: the multiple flare model

0345824 - ASÚ 2015 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Goosmann, René - Mouchet, M. - Czerny, B. - Karas, Vladimír - Dovčiak, Michal - Goncalves, A.
Modeling the X-ray variability in MCG-6-30-15: the multiple flare model.
X-ray astronomy 2009: Present status, multi-wavelength approach and future perspectives. Melville: American Institute of Physics, 2010 - (Zatloukal, M.), 441-442-442. AIP Conference Proceedings, 1248. ISBN 978-0-7354-0795-4. ISSN 0094-243X.
[X-ray astronomy 2009. Bologna (IT), 07.09.2009-11.09.2009]
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: X-ray: variability * galaxies: Seyfert
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika

We report on the current state of the multiple flare model that was developed to explain the observed X-ray variability in active galactic nuclei. The method assumes temporary spots co-rotating with the accretion disk. Here we apply the model to the 300 ksec XMM-Newton observation of the Seyfert galaxy MCG-6-30-15. We find a satisfying reproduction of the rms-variability data at photon energies between 4 keV and 10 keV. The observed shape of the power spectral density, on the other hand, remains difficult to explain by a model of independent multiple flares.
Trvalý link: http://hdl.handle.net/11104/0187009