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4 papers
Multifrequency Observations of the Gamma-Ray Blazar 3C 279 in Low-State during Integral AO-1
W. Collmar, M. Böttcher, V. Burwitz +19
We report first results of a multifrequency campaign from radio to hard X-ray energies of the prominent gamma-ray blazar 3C 279 during the first year of the INTEGRAL mission. The v…
ROSAT HRI observations of radio-loud AGN
M. Gliozzi, W. Brinkmann, S. A. Laurent-Muehleisen +2
We present the results of three ROSAT HRI observations of AGN expected to reside in clusters of galaxies. Although the exposures were truncated by the premature end of the ROSAT mi…
1ES 1741+196: a BL Lacertae object in a triplet of interacting galaxies?
J. Heidt, K. Nilsson, J. W. Fried +2
We present subarcsecond resolution imaging and spectroscopy of the BL Lac object 1ES 1741+196 and neighboring galaxies. Based on 2-dimensional modelling, the host galaxy of 1ES 174…
High-resolution imaging of Einstein Slew Survey BL Lacertae objects
J. Heidt, K. Nilsson, A. Sillanpaeae +2
High-resolution images of 7 newly identified BL Lac objects (among them one BL Lac candidate) at z < 0.2 from the Einstein Slew Survey are presented for the first time. In all case…