5 papers
Internal Kinematics of Spiral Galaxies in Distant Clusters
B. L. Ziegler, A. Boehm, K. Jaeger +2
We present first results from our project to examine the internal kinematics of disk galaxies in 7 rich clusters with 0.3<=z<0.6. Spatially resolved MOS spectra have been obtained…
A wide field survey at the Northern Ecliptic Pole I: Number counts and angular correlation functions in K
M. W. Kuemmel, S. J. Wagner
We present the results from a multi colour survey performed at the Northern Ecliptic Pole (NEP). The survey is designed to identify the counterparts of faint sources from the ROSAT…
Environments of QSOs at intermediate redshifts
Klaus Jaeger, Klaus J. Fricke, Jochen Heidt
A preliminary analysis of fields around 20 mainly radio-quiet QSOs (RQQs) at intermediate redshift is summarized. We find overdensities of faint sources around 50% of our observed…
Gamma-ray to radio activity and ejection of a VLBI component in the jet of the S5-quasar 0836+710
K. Otterbein, T. P. Krichbaum, A. Kraus +4
Broad-band (gamma to radio) variations of the flux density were observed in the first half of 1992 in the luminous high redshift (z = 2.172) quasar S5 0836+710. VLBI monitoring obs…
Observing the galaxy environment of QSOs
Klaus J"ager, Klaus J. Fricke, Jochen Heidt
We outline our recently started program to investigate the galaxy environment of QSOs, in particular of radio-quiet objects at intermediate redshifts.