Spectral energy distribution profiles from AGN accretion disc in multigap set-up

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00573493" target="_blank" >RIV/67985815:_____/23:00573493 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/23:00134216 RIV/00216208:11320/23:10476928

Result on the web

<a href="https://doi.org/10.1093/mnras/stad1127" target="_blank" >https://doi.org/10.1093/mnras/stad1127</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/mnras/stad1127" target="_blank" >10.1093/mnras/stad1127</a>

Result language

angličtina

Original language name

Spectral energy distribution profiles from AGN accretion disc in multigap set-up

Original language description

Spectral energy distribution (SED) of the broad-band continuum emission from black-hole accretion discs can serve as a tool to measure parameters of the central body and constrain the geometry of the inner accretion flow. We focus on the case of an active galactic nucleus (AGN), with an accretion disc dominating the UV/optical bands. We parametrize the changes in the thermal and power-law components, which can reveal the diminution of the emissivity. To this end we explore the effects of gaps in the accretion disc and the emerging SED that can be caused by the presence of either (i) the inner, optically thin, radiatively inefficient hot flow, (ii) a secondary black hole embedded within the accretion disc, or (iii) a combination of both components. We suggest that the resulting changes in the SED of the underlying continuum can help us understand some departures from the standard-disc scenario. We estimate that the data required for such a project must be sampled in detail over the far-UV to soft X-ray bands during the interval of about a month corresponding to the characteristic variability time-scale of an AGN. Detecting a gap at intermediate radii of a few 100 gravitational radii would require quality photometry with uncertainties up to similar to 1 . The presence of the central cavity in the standard disc can be recovered in UV photometric data with an accuracy of 5 per cent and better. We show the effect of the intrinsic reddening of the source and demonstrate when it can be disentangled.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

e-ISSN

1365-2966

Volume of the periodical

522

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

16

Pages from-to

2869-2884

UT code for WoS article

000983364800026

EID of the result in the Scopus database

2-s2.0-85161214508