EDP Sciences
Free access
Volume 427, Number 3, December I 2004
Page(s) 1009 - 1017
Section Stellar atmospheres
DOI http://dx.doi.org/10.1051/0004-6361:20041460

A&A 427, 1009-1017 (2004)
DOI: 10.1051/0004-6361:20041460

Chemical analysis of 24 dusty (pre-)main-sequence stars

B. Acke and C. Waelkens

Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200B, 3001 Leuven, Belgium
    e-mail: bram.acke@ster.kuleuven.ac.be

(Received 14 June 2004 / Accepted 6 August 2004 )

We have analysed the chemical photospheric composition of 24 Herbig Ae/Be and Vega-type stars in search for the $\lambda$ Bootis phenomenon. We present the results of the elemental abundances of the sample stars. Some of the stars were never before studied spectroscopically at optical wavelengths. We have determined the projected rotational velocities of our sample stars. Furthermore, we discuss stars that depict a (selective) depletion pattern in detail. HD 4881 and HD 139614 seem to display an overall deficiency. AB Aur and possibly HD 126367 have subsolar values for the iron abundance, but are almost solar in silicon. HD 100546 is the only clear $\lambda$ Bootis star in our sample.

Key words: stars: abundances -- stars: chemically peculiar -- stars: planetary systems: protoplanetary disks -- stars: pre-main-sequence -- stars: individual: HD 100546

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© ESO 2004