X-ray Polarization of Black-hole Accretion Disks in Active Galactic Nuclei

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10440083" target="_blank" >RIV/00216208:11320/21:10440083 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mff.cuni.cz/veda/konference/wds/proc/pdf21/WDS21_03_f1_Podgorny.pdf" target="_blank" >https://www.mff.cuni.cz/veda/konference/wds/proc/pdf21/WDS21_03_f1_Podgorny.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

X-ray Polarization of Black-hole Accretion Disks in Active Galactic Nuclei

Popis výsledku v původním jazyce

We present the theoretical spectrum and polarization properties of X-ray emission from accretion disks in active galactic nuclei (AGN). The reflected radiation from an accretion disk illuminated by a corona above is computed using the Monte Carlo radiative transfer code STOKES. The structure of the disk, modeled as a constant density slab, has been computed with the TITAN code for optically thick and hot photo-ionized media. Further, we use the relativistic code KYNSTOKES based on our well-tested relativistic KY package to account for all relativistic effects on radiation near a black hole and to compute the total disk emission as would be detected by a distant observer. It is then possible to predict X-ray spectral and polarization properties of an accretion disk in AGN and their dependence on various parameters of the system (spin of the black hole, ionization of the accretion disk, observer inclination). This is fundamental for the interpretation of AGN spectra and polarization obtained by the IXPE mission or the eXTP mission.

Název v anglickém jazyce

X-ray Polarization of Black-hole Accretion Disks in Active Galactic Nuclei

Popis výsledku anglicky

We present the theoretical spectrum and polarization properties of X-ray emission from accretion disks in active galactic nuclei (AGN). The reflected radiation from an accretion disk illuminated by a corona above is computed using the Monte Carlo radiative transfer code STOKES. The structure of the disk, modeled as a constant density slab, has been computed with the TITAN code for optically thick and hot photo-ionized media. Further, we use the relativistic code KYNSTOKES based on our well-tested relativistic KY package to account for all relativistic effects on radiation near a black hole and to compute the total disk emission as would be detected by a distant observer. It is then possible to predict X-ray spectral and polarization properties of an accretion disk in AGN and their dependence on various parameters of the system (spin of the black hole, ionization of the accretion disk, observer inclination). This is fundamental for the interpretation of AGN spectra and polarization obtained by the IXPE mission or the eXTP mission.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

WDS&apos;21 Proceedings of Contributed Papers — Physics

ISBN

978-80-7378-455-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

21-26

Název nakladatele

Matfyzpress

Místo vydání

Praha

Místo konání akce

Praha/ZOOM

Datum konání akce

15. 6. 2021

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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