HD 134214 (BD 4081) is the rapidly oscillating Ap stars with the highest principal oscillation frequency at about 2949 Hz. It shows a peak-to-peak variation in its pulsational frequency on a time scale of approximately 248 days with a semi-amplitude in B about 3.5 mmag (Kreidl et al. 1994). Their data shows no evidence of amplitude modulation. During the 1997-98, 1998-99, and 1999-2000 observing seasons 29, 33, and 32 sets of uvby photometry, respectively, were obtained with the FCAPT. There is no evidence of periodicity when the data is examined by the Scargle (1982) periodogram. Usually only one observation per night was obtained, but for a few nights two observations per night were made. But only with closely spaced continuous observations will one find the principal oscillation frequency. The standard deviations for the difference of the check-comparison stars (Table 5) are slightly larger than that for other pairs in this series of papers, but these stars are observed through a greater airmass than most other stars.
This work was supported in part by NSF grant AST-9528506. I appreciate the continuing efforts of Louis J. Boyd, Robert J. Dukes Jr., and George P. McCook to keep the FCAPT operating properly. This research has made use of the SIMBAD database, operated at the CDS, Strasbourg, France.
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