A search for rapid variability among four northern AP stars

Details A search for rapid variability among four northern AP stars A search for rapid variability among four northern AP stars

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..841m&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Sept. 1985, p. 841-846. NSERC-supported research.

Astronomy and Astrophysics

Astronomy

37

A Stars, Northern Sky, Peculiar Stars, Stellar Oscillations, Variable Stars, Astronomical Photometry, Fourier Analysis, Light Curve, Periodic Variations, Signal To Noise Ratios

Scientific paper

Four Ap stars were monitored for rapid variability in two colors during six nights in March 1984. The photometric data were searched for periodicities by Fourier analysis. One star - 49 Cam - was apparently varying at low amplitude (ΔB≡3 mmag) with a period of approximately 61.6 minutes. No periodic variations were detected in HR 4330, HR 4369, or 53 Cam. The null result for 53 Cam is particularly significant, given previous reports in the literature of short time-scale variability in that star.

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