1H0419-577: a two-state Seyfert Galaxy?
Astrophysics
2015-06-24 v1
Abstract
The preliminary results of the BeppoSAX observation of the radio-quiet AGN 1H0419-577 are presented. Despite its broad line optical spectrum, the intermediate X-ray spectrum (i.e. 2--10 keV) is flatter than typically observed in Seyfert 1s and no iron line is significantly detected. Even more intriguingly, a 1992 ROSAT pointed observation suggests a dramatic (~ 1) change in the spectral shape for E < 2 keV. Such behavior is briefly discussed in the framework of our current understanding of Comptonization scenarios in the nuclear regions of radio-quiet AGN.
Keywords
Cite
@article{arxiv.astro-ph/9712248,
title = {1H0419-577: a two-state Seyfert Galaxy?},
author = {M. Guainazzi and A. Comastri and G. Stirpe and W. N. Brandt and A. Parmar and E. M. Puchnarewicz},
journal= {arXiv preprint arXiv:astro-ph/9712248},
year = {2015}
}
Comments
4 pages, Latex, 4 Postscript figures, `espcrc2.sty included, to appear in the Proceedigns of the Workshop "The active X-ray sky: results from Beppo-SAX and RXTE"