3 papers
astro-ph1997
New bright soft X-ray selected ROSAT AGN: I. Infrared-to-X-ray spectral energy distributions
D. Grupe, K. Beuermann, H. -C. Thomas +2
We present results of an infrared-to-X-ray study of 76 bright soft X-ray selected Seyfert galaxies discovered in the ROSAT All-Sky Survey. These objects are characterized by steep…
astro-ph1997
Soft X-ray properties of the Seyfert 1.8 galaxy NGC 3786
Stefanie Komossa, Henner Fink
An analysis of survey and pointed ROSAT PSPC observations of the Seyfert 1.8 galaxy NGC 3786 has revealed interesting spectral and temporal behaviour. The spectrum is found to show…
astro-ph1995
Ultrasoft transient X-ray emission from AGN
K. Mannheim, D. Grupe, K. Beuermann +2
We report some remarkable and unexpected results of optical/UV/X-ray follow-up observations of bright soft X-ray selected AGN from the ROSAT All-Sky-Survey. The majority of these A…