Title: UVES/VLT spectra of white dwarfs
Creators: Koester, D.; Napiwotzki, R.; Christlieb, N.; Drechsel, H.; Hagen, H.J.; Heber, U.; Homeier, D.; Karl, C.; Leibundgut, B.; Moehler, S.; Nelemans, G.A. ; Reimers, D.; Reinecke, E.-M.; Renzini, A.; Yungelson, L.
Date of Archiving: 2001
Archive: VizieR Online Data Catalog
Related links: http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=J/A+A/378/556
Related publications: High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia prog ...
Publication type: Dataset
Access level : open access

Please use this identifier to cite or link to this item : http://hdl.handle.net/2066/156388   http://hdl.handle.net/2066/156388

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Key words: stars
white dwarfs
supernovae
general
Organization: Astrophysics
Abstract:
We have started a large survey for radial velocity variations in white dwarfs (PI R. Napiwotzki) with the aim of finding close double degenerates, which could be precursor systems for SNeIa. The UVES spectrograph at the ESO VLT is used to obtain high resolution spectra with good S/N. During this project 1500 white dwarfs will be observed. This unique data set will also allow to derive atmospheric parameters and masses for the largest sample of white dwarfs ever analyzed in a homogenous way. In this paper we present a catalog of objects and report results for the first sample of about 200 white dwarfs, many of which are spectroscopic confirmations of candidates from the HE, MCT, and EC surveys. Among the peculiar spectra we identify two new magnetic DA, one previously known magnetic DA, several DA with emission cores, in some cases due to a late-type companion, and two new DBA.
Audience(s): Astronomy, astrophysics

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