GSC08613-02122, a new delta Scuti star in Carina

Astronomy and Astrophysics – Astronomy

Scientific paper

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Technique: Photometric, Stars: Gsc08613-02122, 4 Cvn, Delta Scuti

Scientific paper

We present a collection of more than 4000 UBVRI and uvby differential photometric measurements of the newly-discovered 12th-magnitude southern delta Scuti star GSC08613-02122. The star has a main pulsation period of about 4 hours with an amplitude of 0.05 mag in the V band. The pulsation amplitude is variable, and the O-C diagram reveals the existence of a long P~29.5-day cycle, which possibly results from the beating of the main pulsation frequency with a nearby frequency.

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