43 citations · 122 across the 19 of their papers we have counts for
19 papers
Bipolar outflow on the Asymptotic Giant Branch - the case of IRC+10011
D. Vinkovic, Th. Bloecker, K. -H. Hofmann +2
Near-IR imaging of the AGB star IRC+10011 (= CIT3) reveals the presence of a bipolar structure within the central ~0.1 arcsec of a spherical dusty wind. We show that the image asym…
H- and He-burning central stars and the evolution to white dwarfs
T. Bloecker
The structure and evolution of central stars of planetary nebulae (CSPNe) is reviewed. CSPNe represent the rapid transitional stage between the Asymptotic Giant Branch (AGB) and th…
Spectral Observations of Stars in Late Stages of Stellar Evolution
T. Bloecker, K. -H. Hofmann, G. Weigelt
Interferometric observations of stars in late stages of stellar evolution and the impact of VLTI observations are discussed. Special attention is paid to the spectral information t…
Bispectrum speckle interferometry of IRC+10216: the dynamic evolution of the innermost circumstellar environment from 1995 to 2001
G. Weigelt, Y. Y. Balega, T. Bloecker +3
We present new near-infrared (JHK) bispectrum speckle-interferometry monitoring of the carbon star IRC+10216 obtained between 1999 and 2001 with the SAO 6m telescope. The J-, H-, a…
AGB and Post-AGB Evolution: Structural and Chemical Changes
T. Bloecker, R. Osterbart, G. Weigelt +2
Structural and chemical changes during the AGB and post-AGB evolution are discussed with respect to two recent observational and theoretical findings. On the one hand, high-resolut…
Computer simulations of interferometric imaging with the VLT interferometer and its AMBER instrument
F. Przygodda, T. Bloecker, K. -H. Hofmann +1
We present computer simulations of interferometric imaging with the Very Large Telescope Interferometer (VLTI) of the European Southern Observatory (ESO) and the Astronomical Multi…