Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...149..266b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 149, no. 2, Aug. 1985, p. 266-272. NSERC-supported research.
Astronomy and Astrophysics
Astrophysics
15
Astronomical Photometry, Magnetic Stars, Peculiar Stars, Stellar Evolution, Stellar Rotation, A Stars, Electrophotometry, Light Curve, Star Clusters
Scientific paper
Photoelectric Stromgren photometry of seven magnetic peculiar stars in Upper Scorpius has been conducted. The periods of photometric variation have been determined. Periods and periods of magnetic peculiar stars in Orion (North, 1984) are used in a comparison to periods of magnetic peculiar stars in the field. It is concluded that there are no significant differences between the periods of the young cluster stars and the periods of the older field stars. This indicates that there is no significant angular momentum loss on the main sequence. Angular momentum is probably lost before the main sequence.
Beaulieu Anne
Borra Ermanno F.
Brousseau Denis
Shelton Ian
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