The flare model for X-ray variability of NGC 4258
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F11%3A00359783" target="_blank" >RIV/67985815:_____/11:00359783 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201016369" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201016369</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201016369" target="_blank" >10.1051/0004-6361/201016369</a>
Alternative languages
Result language
angličtina
Original language name
The flare model for X-ray variability of NGC 4258
Original language description
We study the variability mechanism of active galactic nuclei (AGN) within the framework of the flare model. To this end we examine the case of Seyfert/LINER galaxy NGC 4258, which is observed at high inclination angle and exhibits rapid fluctuations of the X-ray light curve. We construct a model light curve based on the assumption of magnetic flares localized in the equatorial plane. We calculate the level of variability as a function of the inclination. Highly inclined sources such as this one are particularly suitable to test the flare model because the effects of orbital motion, Doppler boosting and light bending are all expected to have maximum when the accretion disk is seen almost edge-on. The model is consistent with the NGC 4258 variability, where the obscuring material is thought to be localized mainly towards the equatorial plane.
Czech name
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Czech description
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Classification
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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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy and Astrophysics
ISSN
0004-6361
e-ISSN
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Volume of the periodical
530
Issue of the periodical within the volume
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Country of publishing house
FR - FRANCE
Number of pages
6
Pages from-to
"A136/1"-"A136/6"
UT code for WoS article
000291027400136
EID of the result in the Scopus database
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