SIMBAD references

2005A&A...444..565B - Astronomy and Astrophysics, volume 444, 565-571 (2005/12-3)

Rotation velocities of white dwarfs determined from the Ca II K line.

BERGER L., KOESTER D., NAPIWOTZKI R., REID I.N. and ZUCKERMAN B.

Abstract (from CDS):

We determine projected rotation velocities vsin i in DAZ white dwarfs, for the first time using the rotational broadening of the CaII K line. The results confirm previous findings that white dwarfs are very slow rotators, and set even more stringent upper limits of typically less than 10km/s. The few exceptions include 3 stars known or suspected to be variable ZZ Ceti stars, where the line broadening is very likely not due to rotation. The results demonstrate that the angular momentum of the core cannot be preserved completely between main sequence and final stage.

Abstract Copyright: ∼

Journal keyword(s): stars: white dwarfs - stars: rotation

CDS comments: Table 1, Fig. 3, Table 3 WD 0208+296 is a probable misprint for WD 0208+396.

Simbad objects: 40

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