260 citations · 1.8k across the 39 of their papers we have counts for
10 papers · 1 filter
Barred CO emission in HE1029-1831
M. Krips, A. Eckart, R. Neri +5
We present CO(1-0) and CO(2-1) line emission maps of the barred spiral active galaxy HE1029-1831 (z=0.0403) obtained with the IRAM Plateau de Bure Interferometer (PdBI) and in part…
The possibility of detecting Sagittarius A* at 8.6 mum
R. Schoedel, A. Eckart, K. Muzic +3
The Galactic Center was observed at 8.6 mum in order to detect a mid-infrared (MIR) counterpart of Sgr A*, parallel to NIR observations. The goal was to set constraints on possible…
"Oscillating" components in the BL Lac object 0716+714?
S. Britzen, V. Meyer, A. Witzel +5
15 VLBA observations of the BL Lac object 0716+714, performed between 1994.67 and 2006.40 at 15 GHz, have been analyzed. Part of the data (12 epochs) were obtained within the Mojav…
The Kinematics of S5 1803+784
N. A. Kudryavtseva, S. Britzen, A. Witzel +8
We present the results of a multi-frequency analysis of the structural variability in the parsec-scale jet of the blazar S5 1803+784. More than 90 epochs of observations at 6 frequ…
K-band polarimetry of an Sgr A* flare with a clear sub-flare structure
L. Meyer, R. Schoedel, A. Eckart +3
Context: The supermassive black hole at the Galactic center, SgrA*, shows frequent radiation outbursts, often called 'flares'. In the near-infrared some of these flares were report…
Near-infrared polarimetry setting constraints on the orbiting spot model for Sgr A* flares
L. Meyer, A. Eckart, R. Schoedel +4
Context: Recent near-infrared polarization measurements of SgrA* show that its emission is significantly polarized during flares and consists of a non- or weakly polarized main fla…