A physical study of the Ursa Major cluster (with special attention to the peculiar A stars)

Details A physical study of the Ursa Major cluster (with special attention to the peculiar A stars) A physical study of the Ursa Major cluster (with special attention to the peculiar A stars)

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...53...33l&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 53, July 1983, p. 33-42.

Astronomy and Astrophysics

Astrophysics

3

A Stars, Peculiar Stars, Star Clusters, Stellar Spectra, Abundance, Line Spectra, Milky Way Galaxy, Stellar Rotation

Scientific paper

Intermediate dispersion spectra for 26 A-type stars in the Ursa Major region are the basis of the present search for spectral peculiarities characteristic of certain clusters or associations. Line intensities have been measured for 17 spectral lines representing 11 elements, and the average values of these intensities have been studied. Preliminary results indicate that the combined effects of chemical peculiarity and star rotation are major impediments to the success of the present investigation. A tentative reclassification of the stars observed is undertaken.

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