3 papers
astro-ph2000
1E 0117.2-2837 and the NLR of Narrow-Line Seyfert 1 galaxies
S. Komossa, D. Grupe, M. Janek
Based on photoionization calculations we present a study of the NLR emission line ratios of Narrow-line Seyfert 1 (NLS1) galaxies. In particular, we investigate the influence of di…
astro-ph1998
Properties of new X-ray selected AGN
K. Bischoff, W. Pietsch, T. Boller +3
We present the results of a program to identify so far unknown active nuclei (AGN) in galaxies. Candidate galactic nuclei have been selected for optical spectroscopy from a cross-c…
astro-ph1994
Interaction of the Loop I Supershell with the Local Hot Bubble
Roland J. Egger, Bernd Aschenbach, MPE Garching +1
A soft X-ray shadow has been discovered on the periphery of the Loop I supershell in the ROSAT All Sky Survey. The distance, size, geometry and spectral data indicate that it is ca…