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ASCA Observations of Narrow-Line Seyfert 1 Galaxies
Published online by Cambridge University Press: 12 April 2016
Abstract
ASCA observations of four narrow-line Seyfert 1 galaxies are presented. Among the four sources, two show X-ray spectra consisting of soft and hard components. Rapid X-ray variability is observed in all four sources. We estimate the central black-hole mass of these sources and find indications that the apparent luminosities exceed the Eddington limit under some assumptions.
- Type
- I. X-Rays and the Nuclear Regions of Active Galaxies
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- Copyright © Astronomical Society of the Pacific 1997
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