Periodogram analysis of semi-regular variable stars. II

Details Periodogram analysis of semi-regular variable stars. II Periodogram analysis of semi-regular variable stars. II

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jbaa...86..379h&link_type=abstract

British Astronomical Association, Journal, vol. 86, Aug. 1976, p. 379-382.

Astronomy and Astrophysics

Astronomy

Light Curve, Periodic Variations, Semiregular Variable Stars, Stellar Radiation, Amplitude Distribution Analysis, Pulsed Radiation, Visual Observation

Scientific paper

On the basis of periodogram analysis, it is determined that the SR U Boo should be reclassified from an SRb to an SRa star with elements Max = 2 440 424 + 201.9 E and M-m = 53. The mean period for the semiregular variable star T Psc was found to be 257 plus or minus 5 days, with an amplitude of about 0m.5, and it was shown that a secondary period of 395d may be present. The primary period found for the semiregular variable V UMa was 215 plus or minus 5 days, with a secondary period of 320d rather than 225d found by Isles (1974).

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