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Follow-up spectroscopy with this telescope was conducted as a back-up for a main program which needed photometric conditions. So, the observations presented here were obtained in non-photometric conditions and the absolute flux calibration of the data is unreliable.
The Cassegrain focal reducer CAFOS of the 2.2m telescope was used with a long slit of 300 3 and a grism of 187 Å mm-1 linear dispersion. Spectra were recorded on a 2K2K Site CCD operated in a 21 binned mode (binning only along the dispersion direction), resulting in a spectral resolution of about 20 Å (FWHM), and a wavelength coverage Å. No order separation filter was installed. The slit orientation was again not aligned with the parallactic angle to keep the duty-cycle high. The exposure times varied between 10 and 15 minutes depending on the object brightness. The observations were complemented by standard star flux measurements, Hg-He-Cd lamp exposures for wavelength calibration, dome flat-, bias-, and dark-frames. The seeing was between 1.5 and 2.5 (FWHM).