54 Cam - A new variable star

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Binary Stars, Light Curve, Stellar Spectra, Stellar Spectrophotometry, Variable Stars, Radio Emission, Stellar Magnetic Fields, Ubv Spectra

Scientific paper

Differential photometry of the RS CVn-type binary 54 Cam is presented, which shows that the light was variable with a period of 10.163 + or - 0.009 d, and with an amplitude increase from 0.03 to 0.06 m between 1979 and 1980. The photometric period of 10.163 d is 9% shorter than the orbital period of 11.0764 d, and is suggested as an explanation for the radio emission from 54 Cam due to a process of connection, disruption, and reconnection of magnetic field lines.

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