6 papers
Mass ratio estimates for overcontact binaries using the derivatives of light curves
Shinjirou Kouzuma
The photometric mass ratios of eclipsing binaries are usually estimated by light-curve modeling with an iterative method. We propose a new method for estimating the photometric mas…
Orbital inclination estimates for overcontact binaries using the derivatives of light curves
Shinjirou Kouzuma
The orbital inclination of an eclipsing binary is generally determined through light curve analysis. Binary parameters in the light curve analysis are typically constrained through…
Using Light Curve Derivatives to Estimate the Fill-out Factor of Overcontact Binaries
Shinjirou Kouzuma
We propose a simple method for estimating the fill-out factor of overcontact binary systems using the derivatives of light curves. We synthesized 74,431 sample light curves, coveri…
Statistical analysis of eclipsing binaries with monotonic orbital-period variations: A-type W UMa contact systems
Shinjirou Kouzuma
On the basis of monotonic orbital-period variations, this study aims to identify genuine relationships between binary parameters and the rates of mass transfer (MT), mass loss (ML)…
Mass ratio estimates for overcontact binaries using the derivatives of light curves. II. Systems with deep eclipses
Shinjirou Kouzuma
This is the second paper that proposes a simple method for estimating mass ratios using the derivatives of light curves for overcontact binaries. In the first paper (Kouzuma 2023,…
Classifying the derivatives of light curves for overcontact eclipsing binaries
Shinjirou Kouzuma
Recent studies indicate that the physical properties of eclipsing binaries can be extracted from the derivatives of their light curves. A classification scheme for the derivatives…