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5 papers · 2 filters
Eta Car through the eyes of interferometers
Olivier Chesneau, R. Van Boekel, T. Herbst +6
The core of the nebula surrounding Eta Carinae has recently been observed with VLT/NACO, VLTI/VINCI, VLTI/MIDI and VLTI/AMBER in order to spatially and spectrally constrain the war…
Infrared Echoes near the Supernova Remnant Cassiopeia A
O. Krause, G. H. Rieke, S. M. Birkmann +9
Two images of Cassiopeia A obtained at 24 micrometer with the Spitzer Space Telescope over a one year time interval show moving structures outside the shell of the supernova remnan…
VLTI/MIDI measurements of extended mid-infrared emission in the Galactic Center
J. -U. Pott, A. Eckart, A. Glindemann +2
We investigated with MIDI the extension of dusty mid-infrared excess sources (IRS 1W, IRS 10W, IRS 2, IRS 8) in immediate vicinity to the black hole (BH) at the GC. We derive 3…
Gravoturbulent formation of planetesimals
Anders Johansen, Hubert Klahr, Thomas Henning
We explore the effect of magnetorotational turbulence on the dynamics and concentrations of boulders in local box simulations of a sub-Keplerian protoplanetary disc. The solids are…
A quasi-time-dependent radiative transfer model of OH104.9+2.4
D. Riechers, Y. Balega, T. Driebe +4
We investigate the pulsation-phase dependent properties of the circumstellar dust shell (CDS) of the OH/IR star OH104.9+2.4 based on radiative transfer modeling (RTM) using the cod…