Time-Series Ensemble Photometry of SX Phoenicis Stars. II. AE Ursae Majoris

Details Time-Series Ensemble Photometry of SX Phoenicis Stars. II. AE Ursae Majoris Time-Series Ensemble Photometry of SX Phoenicis Stars. II. AE Ursae Majoris

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasp..109.1073h&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.109, p.1073-1076

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9

Stars: Individual: Ae Ursae Majoris, Stars: Variables: Others, Stars: Oscillations

Scientific paper

We have examined the short period, double-mode variable star AE Ursae Majoris. Using time series ensemble photometry we have determined six new times of maximum light. We also applied a Fourier decomposition to the data to determine the component frequencies of the light curve. Using our data, along with archival data, we find that the period of AE UMa is continually decreasing at a rate of -1.14x 10(-10) d d(-1) . However, from the Fourier decomposition we find that the period ratio P1/P0 has remained constant at 0.773. We also find that AE UMa is incorrectly classified as a SX Phoenicis star. (SECTION: Stars)

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