The True Nature of the DBA Star KPD 2146+4117

Details The True Nature of the DBA Star KPD 2146+4117 The True Nature of the DBA Star KPD 2146+4117

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000pasp..112..837b&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 112, Issue 772, pp. 837-839.

Astronomy and Astrophysics

Astronomy

1

Stars: Individual (Kpd 2146+4117), Stars: Subdwarfs, Stars: White Dwarfs

Scientific paper

A new optical spectrum and model atmosphere analysis of the cool DBA white dwarf KPD 2146+4117, discovered in the Kitt Peak-Downes colorimetric survey, shows that this star should be reclassified as a helium-strong subdwarf B star. The parameters we derive, Teff=34,300 K, logg=6.1, and logy=-1.0, place it squarely within the sample of such objects studied by R. A. Saffer and coworkers.

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