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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

e-ISSN

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Svazek periodika

439

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

3931-3950

Kód UT WoS článku

000334115400056

EID výsledku v databázi Scopus

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