Theoretical modelling of the AGN iron line vs. continuum time-lags in the lamp-post geometry

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00471325" target="_blank" >RIV/67985815:_____/16:00471325 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/16:00488884
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201527748" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201527748</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201527748" target="_blank" >10.1051/0004-6361/201527748</a>

Result language
angličtina
Original language name
Theoretical modelling of the AGN iron line vs. continuum time-lags in the lamp-post geometry
Original language description
We estimate time-lags as accurately as possible and fit them with theoretical models in the context of the lamp-post geometry. We also constrain the geometry of the X-ray emitting region in AGN. Given the available data, time-lags between the two energy bands can only be reliably measured at frequencies between similar to 5 x 10(-5) Hz and similar to 10(-3) Hz. The power-law and reverberation time-lag models can both fit the data well in terms of formal statistical characteristics. When fitting the observed time-lags to the lamp-post reverberation scenario, we can only constrain the height of the X-ray source. The data require, or are consistent with, a small (less than or similar to 10 gravitational radii) X-ray source height. In principle, the 5-7 keV band, which contains most of the Fe K alpha line emission, could be an ideal band for studying reverberation effects, as it is expected to be dominated by the X-ray reflection component. We here carried out the best possible analysis with XMM-Newton data. Time-lags can be reliably estimated over a relatively narrow frequency range, and their errors are rather large. Nevertheless, our results are consistent with the hypothesis of X-ray reflection from the inner accretion disc.nn
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
<a href="/en/project/7E13003" target="_blank" >7E13003: High-Resolution Solar Physics Network</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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