A photometric search for rapid oscillations in the cool AP star beta CrB near magnetic maximum

Details A photometric search for rapid oscillations in the cool AP star beta CrB near magnetic maximum A photometric search for rapid oscillations in the cool AP star beta CrB near magnetic maximum

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.248..701k&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 248, Feb. 15, 1991, p. 701-704. Lowell Observatory-supp

Astronomy and Astrophysics

Astronomy

7

A Stars, Cool Stars, Peculiar Stars, Stellar Oscillations, Stellar Spectrophotometry, Frequency Distribution, Stellar Spectra

Scientific paper

Photometric photometry was obtained for beta CrB on eight nights, all within one day of the magnetic maximum of this star, in order to clarify whether or not this is a rapidly oscillating Ap (roAp) star. No coherent oscillations were detected down to a level of 0.34 mmag using narrow-band filters close in wavelength to Johnson B. This implies that beta CrB may not be an roAP star despite having characteristics that are very similar to those of known roAp stars.

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