SIMBAD references

2009A&A...505..441K - Astronomy and Astrophysics, volume 505, 441-462 (2009/10-1)

High-resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia progenitor survey. III. DA white dwarfs.

KOESTER D., VOSS B., NAPIWOTZKI R., CHRISTLIEB N., HOMEIER D., LISKER T., REIMERS D. and HEBER U.

Abstract (from CDS):

The ESO Supernova Ia Progenitor Survey (SPY) took high-resolution spectra of more than 1000 white dwarfs and pre-white dwarfs. About two thirds of the stars observed are hydrogen-dominated DA white dwarfs. Here we present a catalog and detailed spectroscopic analysis of the DA stars in the SPY. Atmospheric parameters effective temperature and surface gravity are determined for normal DAs. Double-degenerate binaries, DAs with magnetic fields or dM companions, are classified and discussed. The spectra are compared with theoretical model atmospheres using a χ2 fitting technique. Our final sample contains 615 DAs, which show only hydrogen features in their spectra, although some are double-degenerate binaries. 187 are new detections or classifications. We also find 10 magnetic DAs (4 new) and 46 DA+dM pairs (10 new).

Abstract Copyright:

Journal keyword(s): stars: white dwarfs

VizieR on-line data: <Available at CDS (J/A+A/505/441): table1.dat table2.dat table3.dat>

Simbad objects: 671

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2020.08.15-22:19:58

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