145 citations · 1k across the 35 of their papers we have counts for
21 papers · 1 filter
An Improved Model of SiO Maser Emission in Miras
M. D. Gray, M. Wittkowski, M. Scholz +3
We describe a combined dynamic atmosphere and maser propagation model of SiO maser emission in Mira variables. This model rectifies many of the defects of an earlier model of this…
Coordinated AMBER and MIDI observations of the Mira variable RR Aql
Iva Karovicova, Markus Wittkowski, David A. Boboltz +1
We have used near- and mid-infrared interferometry to investigate the pulsating atmosphere and the circumstellar environment of the Mira variable RR Aql. Observations were taken wi…
Further Constraints on the Presence of a Debris Disk in the Multiplanet System Gliese 876
Paul D. Shankland, David L. Blank, David A. Boboltz +2
Using both the Very Large Array (VLA) at 7mm wavelength, and the Australia Telescope Compact Array (ATCA) at 3mm, we have searched for microwave emission from from cool dust in the…
J, H, K spectro-interferometry of the Mira variable S Orionis
M. Wittkowski, D. A. Boboltz, T. Driebe +4
Aims: We present J, H, K interferometry with a spectral resolution of 35 for the Mira variable S Orionis. We aim at measuring the diameter variation as a function of wavelength tha…
Imaging the oxygen-rich disk toward the silicate carbon star EU And
Keiichi Ohnaka, David A. Boboltz
We present multi-epoch high-angular resolution observations of 22 GHz H2O masers toward the silicate carbon star EU And to probe the spatio-kinematic distribution of oxygen-rich ma…
Interacting coronae of two T Tauri stars: first observational evidence for solar-like helmet streamers
M. Massi, E. Ros, K. M. Menten +7
Context {The young binary system V773 Tau A exhibits a persistent radio flaring activity that gradually increases from a level of a few mJy at apoastron to more than 100 mJy at per…