1k citations · 3.8k across the 67 of their papers we have counts for
12 papers · 1 filter
Low temperature Rosseland opacities with varied abundances of carbon and nitrogen
Michael T. Lederer, Bernhard Aringer
We attempt to produce low temperature opacity data incorporating the effects of varied abundances of the elements carbon and nitrogen. For our temperature range of interest, molecu…
VSI: the VLTI spectro-imager
F. Malbet, D. Buscher, G. Weigelt +51
The VLTI Spectro Imager (VSI) was proposed as a second-generation instrument of the Very Large Telescope Interferometer providing the ESO community with spectrally-resolved, near-i…
AGB stars of the intermediate-age LMC cluster NGC 1846 II. Dredge up along the AGB
T. Lebzelter, M. T. Lederer, S. Cristallo +3
Aims: We investigate the change in the surface abundance of C during the evolution along the AGB, aiming to constrain third dredge-up models. Methods: High-resolution, near-…
The fluorine abundance in a Galactic Bulge AGB star measured from CRIRES spectra
Stefan Uttenthaler, Thomas Lebzelter, Bernhard Aringer +3
We present measurements of the fluorine abundance in a Galactic Bulge Asymptotic Giant Branch (AGB) star. The measurements were performed using high resolution K-band spectra obtai…
Milli-arcsecond astrophysics with VSI, the VLTI spectro-imager in the ELT era
F. Malbet, D. Buscher, G. Weigelt +49
Nowadays, compact sources like surfaces of nearby stars, circumstellar environments of stars from early stages to the most evolved ones and surroundings of active galactic nuclei c…
Low temperature mean opacities for the carbon-rich regime
Michael T. Lederer, Bernhard Aringer
Asymptotic Giant Branch (AGB) stars undergo a change in their chemical composition during their evolution. This in turn leads to an alteration of the radiative opacities, especiall…