Sep 24, 2013byA. Comastri; G. M. Stirpe; C. Vignali; W. N. Brandt; K. M. Leighly; F. Fiore; M. Guainazzi; G. Matt; F. Nicastro; E. M. Puchnarewicz; A. Siemiginowska
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The BeppoSAX observations of the bright Narrow-Line Seyfert 1 galaxy Ark 564 are presented along with a high quality optical spectrum taken at the 1.5m telescope at La Silla. The 0.1-10 keV X-ray spectrum is characterized by a strong soft component which is best described by blackbody-like emission with a temperature of about 160 eV. At higher energies a steep (Gamma = 2.4) power-law tail is present. There is evidence of an ionized reflector in the form of an iron line and edge. We do not find... Source: http://arxiv.org/abs/astro-ph/0010476v1