Rotation velocities of white dwarfs determined from the CaII K line

Details Rotation velocities of white dwarfs determined from the CaII K line Rotation velocities of white dwarfs determined from the CaII K line

2005-09-06

arxiv.org/abs/astro-ph/0509121v1

Astronomy and Astrophysics

Astrophysics

7 pages, 3 figures, 3 tables

Scientific paper

10.1051/0004-6361:20053340

We determine projected rotation velocities v sini 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 10 km/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.

Affiliated with

Also associated with

No associations

Rating

Rotation velocities of white dwarfs determined from the CaII K line does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rotation velocities of white dwarfs determined from the CaII K line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation velocities of white dwarfs determined from the CaII K line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-375856