A statistical analysis of the magnetic structure of CP stars

Details A statistical analysis of the magnetic structure of CP stars A statistical analysis of the magnetic structure of CP stars

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...394.1023b&link_type=abstract

Astronomy and Astrophysics, v.394, p.1023-1037 (2002)

Astronomy and Astrophysics

Astrophysics

31

Stars: Magnetic Fields, Polarization, Stars: Chemically Peculiar

Scientific paper

We present the results of a statistical study of the magnetic structure of upper main sequence chemically peculiar stars. We have modelled a sample of 34 stars, assuming that the magnetic morphology is described by the superposition of a dipole and a quadrupole field, arbitrarily oriented. In order to interpret the modelling results, we have introduced a novel set of angles that provides one with a convenient way to represent the mutual orientation of the quadrupolar component, the dipolar component, and the rotation axis. Some of our results are similar to what has already been found in previous studies, e.g., that the inclination of the dipole axis to the rotation axis is usually large for short-period stars and small for long-period ones - see Landstreet & Mathys (\cite{Landstreet2000}). We also found that for short-period stars (approximately P<10 days) the plane containing the two unit vectors that characterise the quadrupole is almost coincident with the plane containing the stellar rotation axis and the dipole axis. Long-period stars seem to be preferentially characterised by a quadrupole orientation such that the planes just mentioned are perpendicular. There is also some loose indication of a continuous transition between the two classes of stars with increasing rotational period.

Affiliated with

Also associated with

No associations

Rating

A statistical analysis of the magnetic structure of CP stars 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 A statistical analysis of the magnetic structure of CP stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A statistical analysis of the magnetic structure of CP stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-733916