Apsidal Motion of Stars

Abstract

The photoelectric light curves of the eclipsing binaries YY Sagittarii and RS Canum Venaticorum are presented. It is found that the orbital eccentricity of YY Sgr is greater than 0.15, and may be considerably larger. The primary minimum of Rs CVn is asymmetrical near the shoulders, and the maxima are of unequal height. It is suggested that streams of gas may be presented in this system and contribute to the asymmetry of the minima. The length of the period of primary minimum appears to vary in a 35 year cycle. The secondary minimum may at present be slightly displaced in the direction to be expected if the variation in primary period is the result of apsidal motion.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1949
Accession Number
AD0740702

Entities

People

  • D. N. Limber
  • G. Keller

Organizations

  • Ohio State University

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Amplitude
  • Asymmetry
  • Binary Stars
  • Eccentricity
  • Ephemerides
  • Errors
  • Leading Edges
  • Luminosity
  • Materials
  • Measurement
  • Observation
  • Observatories
  • Radial Velocity
  • Stars
  • Trailing Edges
  • Water Vapor

Fields of Study

  • Physics

Readers

  • Analytical Mechanics
  • Astronomy/Astrophysics
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.

Technology Areas

  • Space