Variable Light Curves of Magnetic CP Stars

Details Variable Light Curves of Magnetic CP Stars Variable Light Curves of Magnetic CP Stars

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.0605s&link_type=abstract

American Astronomical Society Meeting 204, #06.05; Bulletin of the American Astronomical Society, Vol. 36, p.743

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Scientific paper

We review the results of our cooperative program of Strömgren differential uvby photometry of magnetic CP stars using the Four College Automated Photoelectric Telescope at the Fairborn Observatory in southern Arizona. For several stars, we have found definite changes in their light curves. CU Vir has shown changes in its period. 56 Ari has been slowing down while exhibiting a second period, which is interpreted as due to the precession of the rotational axis. HR 7224 changed from a period of a little over a day to one of 100 days. We further discuss CQ UMa, V913 Sco and HD 192913, as well as indicate several other stars for which there is some evidence for variable light curves.
Our research was supported by a grant from NSF.

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