159 citations · 574 across the 21 of their papers we have counts for
19 papers · 1 filter
Lyman alpha emission in high-redshift galaxies
C. Tapken, I. Appenzeller, S. Noll +4
A significant fraction of the high-redshift galaxies show strong Lyman emission lines. For redshifts z>5, most known galaxies belong to this class. However, so far not much is know…
SDSS J1553+0056: A BALQSO mimicking a Lyman-break galaxy
I. Appenzeller, O. Stahl, C. Tapken +2
Using the UVES echelle spectrograph at the ESO VLT we obtained high-resolution (R = 40 000) spectra of the object SDSS J1553+0056, which has been identified in the literature alter…
Edge-on T Tauri stars
Immo Appenzeller, Claude Bertout, Otmar Stahl
Using the UVES echelle spectrograph at the ESO VLT we obtained two-dimensional high-resolution (R = 50 000) spectra of the edge-on disk objects HH30*, HK Tau B, and HV Tau C. For c…
The evolution of the luminosity functions in the FORS Deep Field from low to high redshift: I. The blue bands
A. Gabasch, R. Bender, S. Seitz +13
We use the very deep and homogeneous I-band selected dataset of the FORS Deep Field (FDF) to trace the evolution of the luminosity function over the redshift range 0.5 < z < 5.0. W…
The metal absorption systems of the QSO 0103-260 and the galaxy redshift distribution in the FORS Deep Field
Stephan Frank, Immo Appenzeller, Stefan Noll +1
Using the Uves echelle spectrograph at the ESO VLT, we observed the absorption line spectrum of the QSO 0103-260 in the Fors Deep Field. In addition to the expected Ly-alpha forest…
Spectropolarimetry of the borderline Seyfert 1 galaxy ESO 323-G077
H. M. Schmid, I. Appenzeller, U. Burch
We report the detection of high linear polarization in the bright Seyfert 1 galaxy ESO 323-G077. Based on optical spectropolarimetry with FORS1 at the VLT we find a continuum polar…