Line profile variations in selected Seyfert galaxies

Details Line profile variations in selected Seyfert galaxies Line profile variations in selected Seyfert galaxies

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jphcs.257a2024k&link_type=abstract

Journal of Physics: Conference Series, Volume 257, Issue 1, pp. 012024 (2010).

Physics

Scientific paper

Continua as well as the broad emission lines in Seyfert 1 galaxies vary in different galaxies with different amplitudes on typical timescales of days to years. We present the results of two independent variability campaigns taken with the Hobby-Eberly Telescope. We studied in detail the integrated line and continuum variations in the optical spectra of the narrow-line Seyfert galaxy Mrk 110 and the very broad-line Seyfert galaxy Mrk 926. The broad-line emitting region in Mrk 110 has radii of four to 33 light-days as a function of the ionization degree of the emission lines. The line-profile variations are matched by Keplerian disk models with some accretion disk wind. The broad-line region in Mrk 926 is very small showing an extension of two to three light-days only. We could detect a structure in the rms line-profiles as well as in the response of the line profile segments of Mrk 926 indicating the BLR is structured.

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