Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...347.1021g&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 347, Dec. 15, 1989, p. 1021-1029. Research supported by NSERC.
Astronomy and Astrophysics
Astrophysics
139
G Stars, Giant Stars, Hertzsprung-Russell Diagram, Late Stars, Magnetohydrodynamics, Stellar Rotation, Angular Velocity, Fourier Analysis, High Resolution, Line Spectra
Scientific paper
New high-resolution spectroscopic observations have been obtained for 73 G giants. Fourier analysis of their spectral lines yields rotation velocities and macroturbulence dispersions. Combined with data from an earlier study, total of 86 analyses of luminosity class III giants is now available. The existence of a rotational discontinuity for luminosity class III giants is confirmed, but it is found to be near G0 III rather than G5 III, as indicated in the earlier work. Evidence for rotation being a single-valued function of spectral type is strengthened. The observations are interpreted in terms of a dynamo-generated magnetic brake and a 'rotostat' phenomenon.
No associations
LandOfFree
The rotational break for G giants 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 rotational break for G giants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The rotational break for G giants will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1567036