Photometric variations and period determination of eight southern CP stars

Details Photometric variations and period determination of eight southern CP stars Photometric variations and period determination of eight southern CP stars

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26as...61..127w&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 61, July 1985, p. 127-139. Research supported by the Ministe

Astronomy and Astrophysics

Astrophysics

29

Astronomical Photometry, Carbon Stars, Peculiar Stars, Stellar Magnetic Fields, Southern Sky, Stellar Rotation, Variability

Scientific paper

The photometric variations in the Geneva System of eight southern CP stars are discussed. Improved values for the periods of HD 28843, HD 56455, HD 81009, and HD 175362 are determined; the periods of HD 34797, HD 98457, HD 133880, and HD 191287 are derived for the first time. Both HD 98457 and HD 191287 present variations of exceptionally large amplitude. HD 133880 is a remarkable CP star in view of its short period, its large magnetic field, and the extreme variability of its peculiarity index. The stars HD 28843, HD 34797, and HD 56455 also have a variable peculiarity index.

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