On the Problem of Magnetic Braking

Details On the Problem of Magnetic Braking On the Problem of Magnetic Braking

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pmpa.conf...27f&link_type=abstract

2005: PAST MEETS PRESENT IN ASTRONOMY AND ASTROPHYSICS. Proceedings of the 15th Portuguese National Meeting. Held 28-30 July 200

Astronomy and Astrophysics

Astrophysics

Scientific paper

We examine the effect of the surface magnetic flux distribution on the coronal field topology. This preliminary study is motivated by the observational evidence for high magnetic flux concentration near the stellar poles of rapidly rotating young stars, and whether this has important consequences on the magnetic braking efficiency. We find that the coronal magnetic field rapidly expands to regions of low magnetic pressure creating a relatively smooth magnetic field with no memory of the surface radial field latitudinal distribution. Thus, our results indicate that this effect does not determine a reduction in the efficiency of magnetic braking.

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