General relativistic modelling of the negative reverberation X-ray time delays in AGN(star)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F14%3A00429532" target="_blank" >RIV/67985815:_____/14:00429532 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1093/mnras/stu249" target="_blank" >http://dx.doi.org/10.1093/mnras/stu249</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/stu249" target="_blank" >10.1093/mnras/stu249</a>

Result language
angličtina
Original language name
General relativistic modelling of the negative reverberation X-ray time delays in AGN(star)
Original language description
We present the first systematic physical modelling of the time-lag spectra between the soft (0.3-1 keV) and the hard (1.5-4 keV) X-ray energy bands, as a function of Fourier frequency, in a sample of 12 active galactic nuclei which have been observed byXMM-Newton. We concentrate particularly on the negative X-ray time-lags (typically seen above 10(-4) Hz), i.e. soft-band variations lag the hard-band variations, and we assume that they are produced by reprocessing and reflection by the accretion disc within a lamp-post X-ray source geometry. We also assume that the response of the accretion disc, in the soft X-ray bands, is adequately described by the response in the neutral Fe K alpha line at 6.4 keV for which we use fully general relativistic ray-tracing simulations to determine its time evolution.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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