Period Change and Surface Activity of the Eclipsing Binary UV Leonis

Details Period Change and Surface Activity of the Eclipsing Binary UV Leonis Period Change and Surface Activity of the Eclipsing Binary UV Leonis

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ibvs.5338....1m&link_type=abstract

Information Bulletin on Variable Stars, 5338, 1.

Physics

6

Eclipsing Binary, Period Variation, O-C Study, Surface Activity

Scientific paper

From Johnson B and V photometric measurements of V=8.98 mag eclipsing binary UV Leonis we calculated the epochs of primary and secondary minima, which we used to complement the published O-C catalog by Kreiner et al. (2000). From this we give a brief analysis of the observed period change and give qualitative presumptions about the physics that might have caused such a change. Further on, we use the observed systematic vertical shift in light curves as an indication of the surface activity of UV Leonis.

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