The eclipsing binary PV Cas: a case of strong differential rotation in depth

Details The eclipsing binary PV Cas: a case of strong differential rotation in depth The eclipsing binary PV Cas: a case of strong differential rotation in depth

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005mnras.363..967y&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 363, Issue 3, pp. 967-976.

Astronomy and Astrophysics

Astronomy

5

Binaries: Eclipsing, Stars: Chemically Peculiar, Stars: Evolution, Stars: Individual: Pv Cas, Stars: Interiors, Stars: Rotation

Scientific paper

In this study, we show that only models with differential rotation, as opposed to non-rotation or solid-body rotation for the components of PV Cas, are in satisfactory agreement with the observations (including constraints on the apsidal advance rate and the synchronous rotation of the components in addition to their luminosities and radii). Internal rotation profiles found for solar and metal-rich chemical compositions are similar to each other in that only a small part of the outermost regions is rotating very slowly (veq~ 65kms -1) and the rest is rotating very rapidly. Confirmation of Ap-like variations in the light curve of the system leads us to search for a connection between this type (and similar types) of internal rotation and chemically peculiar stars. The temperature difference between the blue sides of the main sequence for the normal and for the magnetic Ap stars may arise from such a connection, since we find a similar difference between the models with this kind of rotation and the non-rotating models of somewhat lower mass.

Affiliated with

Also associated with

No associations

Rating

The eclipsing binary PV Cas: a case of strong differential rotation in depth 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 The eclipsing binary PV Cas: a case of strong differential rotation in depth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The eclipsing binary PV Cas: a case of strong differential rotation in depth will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1635031