Spectroscopic analyses of six suspected chemically peculiar stars

Details Spectroscopic analyses of six suspected chemically peculiar stars Spectroscopic analyses of six suspected chemically peculiar stars

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.368..247c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 368, Issue 1, pp. 247-252.

Astronomy and Astrophysics

Astronomy

1

Stars: Abundances, Stars: Chemically Peculiar, Stars: Individual: Hd155102, Stars: Individual: Hd159082, Stars: Individual: Hd162132

Scientific paper

The abundance pattern of six stars classified as suspected chemically peculiar in the General Catalogue of Ap and Am stars by Renson has been derived to ascertain the real nature of these objects. Spectroscopic observations in the range λλ4800-5600 Å have been carried out at the stellar station of the INAF - Catania Astrophysical Observatory.
Among the studied stars, for only three of them we confirmed their peculiarity, HD155102 being a silicon star, HD159082 a mercury-manganese star and HD162132 a moderate metallic A-type star.
The other three objects have chemical abundances not so different from the standard values derived in the literature for A-type stars and, furthermore, they do not show light variability. Hence, we suggest that they could be ruled out from Renson's catalogue.

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