Free access article

A&A 368, 225-229 (2001)
DOI: 10.1051/0004-6361:20000568

photometry of the CP stars HR 5341, HD 142070, HR 6967, and HR 8434

Saul J. Adelman

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

(Received 20 November 2000 / Accepted 21 December 2000)

Abstract
Differential Strömgren uvby observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the mCP stars HD 142070, HR 6967, and HR 8434 and the CP star HR 5341. The latter star is found to be constant. Improved periods were derived for HD 142070, 3.37189 d, HR 6967, 3.91227 d, and HR 8434, 1.43237 d. Further observations of HD 142070 are needed to phase the magnetic data with the photometry, of HR 6967 to settle minor discrepancies between y and scaled Geneva V photometry, and of HR 8434 to resolve small discrepancies between two uvby photometric data sets.

Key words: stars: chemically peculiar -- stars: individual: HR 5341 -- stars: individual -- HD 142070 -- stars: individual: HR 6967 -- stars: individual: HR 8434

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

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