Observation and Solution of the Light Curve for a W Ursae Majoris Eclipsing Binary Star System.

Abstract

This project has approached the study of eclipsing binary star systems from both the observational and the theoretical stand points. Observations of eclipsing binary stars U Pegasi and AZ Virginis of the W Ursae Majoris contact binary type have been made. The method for solving an eclipsing binary system's light curve for the system's elements (the radii, luminosity and limb darkening coefficients of the component stars and the inclination of the orbital plane) - originally developed by Thomas B. Horak - has been programmed for an electronic computer. Details and proceedings are described. After some modification, Horak's method for solving the light curve is shown to be at least as accurate as the classical methods and yet vastly superior to previous approaches in the speed and ease with which a solution may be obtained. A solution for the recently observed binary system VW Bootis is also obtained which appears superior to the only previous solution. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 23, 1975
Accession Number
ADA015957

Entities

People

  • Bruce E. Miller

Organizations

  • United States Naval Academy

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Binary Stars
  • Coefficients
  • Computers
  • Luminosity
  • Observation
  • Stars

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Microelectronics
  • Space