50 citations · 94 across the 4 of their papers we have counts for
7 papers · 1 filter
2D velocity fields of simulated interacting disc galaxies
T. Kronberger, W. Kapferer, S. Schindler +1
We investigate distortions in the velocity fields of disc galaxies and their use to reveal the dynamical state of interacting galaxies at different redshift. For that purpose, we m…
Investigation of transit-selected exoplanet candidates from the MACHO survey
S. D. Huegelmeyer, S. Dreizler, D. Homeier +1
Context: Planets outside our solar system transiting their host star, i. e. those with an orbital inclination near 90 degree, are of special interest to derive physical properties…
XMM-Newton observation of Mrk 110
Th. Boller, I. Balestra, W. Kollatschny
We report on the first XMM-Newton observation of the bright Narrow-Line Seyfert 1 galaxy Mrk 110. We find a narrow Fe K fluorescent line, a broad component FWHM ~ 16500 km/s of the…
Observational constraints on the evolutionary connection between PG 1159 stars and DO white dwarfs
S. D. Huegelmeyer, S. Dreizler, K. Werner +3
The Sloan Digital Sky Survey has provided spectra of a large number of new PG 1159 stars and DO white dwarfs. This increase in known hot H-deficient compact objects significantly i…
AcDc - A new code for the NLTE spectral analysis of accretion discs: application to the helium CV AM CVn
T. Nagel, S. Dreizler, T. Rauch +1
We present a recently developed code for detailed NLTE calculations of accretion disc spectra of cataclysmic variables and compact X-ray binaries. Assuming a radial structure of a…
Quantitative interpretation of the rotation curves of spiral galaxies at redshifts z~0.7 and z~1
Burkhard Fuchs, Asmus Boehm, Claus Moellenhoff +1
We present decompositions of the rotation curves of three spiral galaxies at redshifts z~0.7 and 1 into contributions by their bulges, disks, and dark halos, respectively. In order…