The extraordinary photometric changes of the CP2 star HR 7224

Details The extraordinary photometric changes of the CP2 star HR 7224 The extraordinary photometric changes of the CP2 star HR 7224

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mnras.351..823a&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 351, Issue 3, pp. 823-825.

Astronomy and Astrophysics

Astronomy

6

Stars: Chemically Peculiar: Stars: Individual: Hr 7224

Scientific paper

An extraordinary change in the optical region photometric variations of the CP2 star HR 7224 is found between observations made during 2003 and those made before 1996. The amplitude of variability has increased from of order 0.04 mag to 0.21 mag. The main period of variability now appears to be of the order of 101 d rather than 1.123 d as previously found.

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