Differential Rotation in Solar-type Stars

Details Differential Rotation in Solar-type Stars Differential Rotation in Solar-type Stars

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.1402b&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #14.02; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

Stellar dynamos require differential rotation. Recent observations by Reiners (A&A 446, 267, 2006) showed the presence of differential rotation in 28 of 147 stars of spectral type F and hotter. Yet, the observational signature of differential rotation in solar-type stars remains elusive, largely because of the smaller magnitude of differential rotation in cooler stars. This paper looks at the effect of surface convection on the Fourier signal of differential rotation and seeks the known signature of differential rotation in the solar flux spectrum.
This research has been supported in part by the Wisconsin Space Grant Consortium.

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