The Algol-type Binary VV UMa: New VRI Photometry and Search for Pulsations

Details The Algol-type Binary VV UMa: New VRI Photometry and Search for Pulsations The Algol-type Binary VV UMa: New VRI Photometry and Search for Pulsations

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confe..21u&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 21-21"

Computer Science

Scientific paper

New CCD VRI light curves and time-series analyses of the Algol-type eclipsing binary VV UMa are presented. Our new observations have been analyzed using the Wilson-Devinney code from which new geometric and photometric elements are derived. A time-series analysis of the residual light curves in the filter I indicates pulsations of the primary component with a main frequency of 17.24 c/d and a semi-amplitude of 0.003 mag. A parallel analysis of the residual light curves in the filter R indicates a main frequency of 16.50 c/d (alias of previous one), which confirms the preliminary result obtained in the I band. There is a slight possibility of multiperiodic behaviour, but the present data are too scarce to be certain.

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