UBV minima for RU UMi (Manimanis+, 2001)

Details UBV minima for RU UMi (Manimanis+, 2001) UBV minima for RU UMi (Manimanis+, 2001)

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ycat..33690960m&link_type=abstract

VizieR On-line Data Catalog: J/A+A/369/960. Originally published in: 2001A&A...369..960M

Physics

Binaries: Eclipsing, Photometry: Ubv

Scientific paper

The near-contact system RU UMi with an F0 primary and a K5 secondary was observed in U, B and V wavelengths in May and July 1998, as well as in March, May and July 1999. Six new observed times of minima are given and a new ephemeris is proposed. The basic parameters of the system extracted by our observations were used for spot modelling of the light curves. A simple spot distribution was determined, based on a model with one relatively small cool spot on the surface of the secondary. Absolute elements were calculated and the evolutionary status was determined. Our data favor a semi-detached configuration, with the secondary filling its inner Roche lobe; the primary must also be near the limits of its lobe. (1 data file).

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