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A spectroscopic study of some suspected chemically peculiar stars
* 1, 3 and
G. Catanzaro 2, 3
Received 10 July 1997 / Accepted 23 October 1997
Time-resolved spectra in the 410 - 700 nm range have been obtained to investigate 10 stars which are classified as suspected chemically peculiar stars in The General Catalogue of Ap and Am stars by Renson et al. (1991) or in the latest literature.
Among the studied stars, HD 20629 presents metal abundances which are significantly different from main sequence star values and it should be classified as Silicon star. From the HeI 587.6 nm line, we conclude that HD 35575 is a helium weak star.
Because of the found radial velocity variability and the derived abundances, the periodic photometric variable HD 38602 could be an ellipsoidal variable.
Key words: stars: chemically peculiar abundances individual: HD 20629, HD 35575, HD 38602
* Visiting astronomer, Complejo Astrónomico El Leoncito, which is operated under agreement between the Consejo Nacional de Investigationes Cientifícas y Técnicas (CONICET) and the National Universities of La Plata, Córdoba and San Juan
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© European Southern Observatory (ESO) 1998
Online publication: February 16, 1998