PoS - Proceedings of Science
Volume 319 - 5th Annual Conference on High Energy Astrophysics in Southern Africa (HEASA2017) - Wednesday, 4 October: Session c: AGN I
Some things change, some don’t. An exploration of Seyfert galaxy luminosity changes over a generation
H. Winkler
Full text: pdf
Pre-published on: September 28, 2018
Published on: November 08, 2018
In the 1980's some of the first systematic photometric studies established that Seyfert galaxies are variable on typical timescales of months. In some instances the luminosity, and even some of the spectral characteristics have changed dramatically over the years. In contrast, other AGN also classified as broad-line Seyferts have proved to be much more photometrically stable. The paper presents re-observations of several AGN obtained at SAAO in 2016-2017. These are used with other recent data to highlight a potential correlation between the spectral characteristics and the variability pattern. The significance of this correlation is briefly explored.
DOI: https://doi.org/10.22323/1.319.0011
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