Rotation and magnetism in white dwarfs

Details Rotation and magnetism in white dwarfs Rotation and magnetism in white dwarfs

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...366..270s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 366, Jan. 1, 1991, p. 270-276.

Astronomy and Astrophysics

Astrophysics

42

Magnetic Stars, Stellar Rotation, White Dwarf Stars, Polarimetry, Polarized Radiation, Stellar Envelopes, Stellar Magnetic Fields, Stellar Structure

Scientific paper

New rotational ephemerides for four isolated magnetic white dwarfs are derived from more than a decade of polarimetric monitoring. The stars span the period range 99 min-17.9 days and effectively double the number of white dwarfs with measured rotation periods. In addition, five stars whose polarization is constant on time scales up to at least 10 years may have very long rotation periods (P greater than about 100 yr). The lack of very short period white dwarfs attests to the coupling of angular momentum into the giant envelope or interstellar medium during late stages of evolution, but thus far there is no evidence that this process involves magnetic braking. With few exceptions, the disk-averaged fields of magnetic degenerates are dominated by dipolar patterns (as opposed to higher order multipoles or spots), and cover a broad range of obliquity to the rotation axis.

Affiliated with

Also associated with

No associations

Rating

Rotation and magnetism in white dwarfs 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 and magnetism in white dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation and magnetism in white dwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1894846