Optical variability in NGC 7469 (Lyuty+, 1995)

Details Optical variability in NGC 7469 (Lyuty+, 1995) Optical variability in NGC 7469 (Lyuty+, 1995)

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ycat..90210652l&link_type=abstract

VizieR On-line Data Catalog: J/PAZh/21/652. Originally published in: 1995PAZh...21..652L; 1995AstL...21..581L

Physics

Galaxies: Seyfert, Photometry: Ubv

Scientific paper

The results of three-color UBV observations of rapid variability in the nucleus of the Seyfert galaxy NGC 7469 carried out in 1990-1994 are presented. The observations have been carried out during 15 different nights using the 60- and 125-cm telescopes with time resolution of 6-8min (50 hours monitoring) with the aperture of 27.5". The mean errors of one measurement are 1.8, 1.2 and 1.4% for U, B and V. The data set length during one night is from 2 up to 5h. The different nights show the variations at different level: from weak, when the standard deviation during the night exceeds the error of one measurement only by 10-20%, up to strong ones, when the standard deviation exceeds the error of the measurement by factor two. (1 data file).

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