SIMBAD references

2006ApJ...643L.123K - Astrophys. J., 643, L123-L126 (2006/June-1)

LP 400-22, a very low mass and high-velocity white dwarf.

KAWKA A., VENNES S., OSWALT T.D., SMITH J.A. and SILVESTRI N.M.

Abstract (from CDS):

We report the identification of LP 400-22 (WD 2234+222) as a very low mass and high-velocity white dwarf. The ultraviolet GALEX and optical photometric colors and a spectral line analysis of LP 400-22 show this star to have an effective temperature of 11,080±140 K and a surface gravity of logg=6.32±0.08. Therefore, this is a helium-core white dwarf with a mass of 0.17 M_☉. The tangential velocity of this white dwarf is 414±43 km/s, making it one of the fastest moving white dwarfs known. We discuss probable evolutionary scenarios for this remarkable object.

Abstract Copyright: ∼

Journal keyword(s): Stars: Atmospheres - stars: individual (LP 400-22) - Stars: White Dwarfs

Simbad objects: 6

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