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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

  • Czech description

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

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

  • Volume of the periodical

    530

  • Issue of the periodical within the volume

  • 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