EDP Sciences
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Volume 390, Number 3, August II 2002
Page(s) 1023 - 1026
Section Formation, structure and evolution of stars
DOI http://dx.doi.org/10.1051/0004-6361:20020761

A&A 390, 1023-1026 (2002)
DOI: 10.1051/0004-6361:20020761

$\vec{uvby}$ photometry of the CP stars HR 149, HD 32966, HD 171782, and HR 7911

Saul J. Adelman and S. A. Meadows

Department of Physics, The Citadel, 171 Moultrie Street, Charleston, SC 29409, USA

(Received 10 January 2002 / Accepted 23 May 2002)

Differential Strömgren uvby observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the CP stars HR 149 and HR 7911 and the mCP stars HD 32966 and HD 171782. The Mercury-Manganese star HR 149 is found to be constant while HR 7911 with a period of 5.9617 days probably has a component which is a magnetic CP star. Improved periods were derived for HD 32966 and HD 171782 of 3.0927 and 4.4674 days, respectively. The former is a rather large amplitude mCP star. Both have at least one light curve different in shape from the others observed.

Key words: stars: chemically peculiar -- stars: individual: HR 149 -- stars: individual: HD 32966 -- stars: individual: HD 171782 -- stars: individual: HR 7911

Offprint request: Saul J. Adelman, adelmans@citadel.edu

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