157 citations · 2.2k across the 65 of their papers we have counts for
6 papers · 1 filter
Revealing the sub-AU asymmetries of the inner dust rim in the disk around the Herbig Ae star R CrA
S. Kraus, K. -H. Hofmann, F. Malbet +5
Models predict that in the innermost AU of the disk around Herbig Ae/Be star, the dust disk forms a "puffed-up" inner rim, which should result in a strongly asymmetric brightness d…
Resolving the asymmetric inner wind region of the yellow hypergiant IRC+10420 with VLTI/AMBER in low and high spectral resolution mode
T. Driebe, J. H. Groh, K. -H. Hofmann +15
We obtained near-infrared long-baseline interferometry of IRC+10420 with the AMBER instrument of ESO's Very Large Telescope Interferometer (VLTI) in low and high spectral resolutio…
VLTI/AMBER unveils a possible dusty pinwheel nebula in WR118
Florentin Millour, Thomas Driebe, Olivier Chesneau +6
Most Wolf-Rayet stars (WR) of WC9 sub-type exhibit a dusty circumstellar envelope, but it is still a matter of debate how dust can form in their harsh environment. In a few cases,…
Spatially resolving the inhomogeneous structure of the dynamical atmosphere of Betelgeuse with VLTI/AMBER
K. Ohnaka, K. -H. Hofmann, M. Benisty +8
We present spatially resolved high-spectral resolution K-band observations of the red supergiant Betelgeuse (alpha Ori) using AMBER at the Very Large Telescope Interferometer (VLTI…
A new spectroscopic and interferometric study of the young stellar object V645 Cyg
A. S. Miroshnichenko, K. -H. Hofmann, D. Schertl +14
We present the results of high-resolution optical spectroscopy, low-resolution near-IR spectroscopy and near-infrared speckle interferometry of the massive young stellar object can…
Tracing the young massive high-eccentricity binary system Theta 1 Orionis C through periastron passage
S. Kraus, G. Weigelt, Y. Y. Balega +10
The nearby high-mass star binary system Theta 1 Orionis C is the brightest and most massive of the Trapezium OB stars at the core of the Orion Nebula Cluster, and it represents a p…