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Photometric Study of the Eclipsing Binary VW Leonis Minoris .
Dumitrescu, Alexandru
VW LMi (HIP 54003) was discovered by HIPPARCOS/TYCHO as a W UMa variable. We carried out BV photometry of this star. A photometric solution is derived with the Djurasevic model. The binary, having the temperatures of the components approximately equal, is an overcontact system. Phase shifts of the light curve maxima were observed.
The Local Stellar Velocity Distribution of the Galaxy
Şuran, Marian Doru; Ionescu, Adina; Popescu, Nedelia Antonia
This paper deals with systematic [r, B-V, MV] calculations of the kinematical parameters in the solar neighbourhood using a combination of the Hipparcos and Barbier-Brossat catalogues. A series of new kinematical and dynamical features are pointed, together with severe limitations and biasing of the two catalogues. The implications for …