A uvby(beta) survey for CA II emission stars

Details A uvby(beta) survey for CA II emission stars A uvby(beta) survey for CA II emission stars

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.170...95f&link_type=abstract

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640

Astronomy and Astrophysics

Astronomy

1

Calcium, Emission Spectra, Metallicity, Stellar Spectra, Stellar Spectrophotometry, Ubv Spectra, Dynamo Theory, Interstellar Extinction, Sky Surveys (Astronomy), Stellar Rotation

Scientific paper

During the last two years a uvby(beta) photometric survey of 85 Ca II emission stars from the Mount Wilson program on stellar activity has been carried out at the Calar Alto Observatory (Almeria, Spain). Preliminary results for the uvby and beta calibrations are presented. Some stars displaying anomalous c1 and m1 indices, with photometric or spectroscopic data from previous studies, are reported. A reddening study for the complete sample is given.

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