OO Aquilae: a solar-type contact binary with intrinsic light curve changes

Light Curve Changes in the Eclipsing Binary V719 Her

Analysis of a photoelectric light curve of the W UMa - type binary ST Ind

Modelling of Walter and Duerbeck’s photoelectric observations of ST Ind is performed. The Wilson-Devinney model along with a Monte Carlo method as the search procedure, was used to derive the physical parameters of this contact system. One dark spot on the surface of the primary component was introduced to explain the observed difference in the heights of the maxima.

Cbs - a Program for Close Binary System Light Curve Analysis

CBS is a new program for binary system light curve analysis, it generates synthetic light curves for a binary system, accounting for eclipses, tidal distortion, limb darkening, gravity darkening and reflection; it is also possible to compute the light contribution and eclipses of an accretion disk. The bolometric light curve is generated, as well as curves for the U,B,V,R,I colour bands. In the...

Measuring Velocity Changes along a Solar Chimney

The increasing consumption of energy from fossil fuels on the one hand and the pollution created by it on the other hand has always raised the concern of replacing clean and renewable energy with fossil fuels in the human mind. Generating electricity through clean energy can be a good solution to reduce pollutants and prevent global warming. One of the most available types of renewable energy i...

The EB - type contact binary system BV Eridani

Two sets of available photoelectric photometric observational data of the close binary system BV Eri were analyzed with the recent Wilson-Devinney synthetic light curve program. The new absolute parameters of the system were also derived by combining the photometric solutions with the spectroscopic material. The research suggests that BV Eri is a B-type contact binary system, and mass from the ...