A Photometric Study of the Eclipsing Binary UV Piscium.

Abstract

The eclipsing binary system UV Piscium, which is a short-period RS Canum Venaticorum-type binary system, was observed at Mt. Laguna Observatory during 1980 using the Stromgren 4-color filter system, and broad and narrow Calcium II K-line filters. A new ephemeris was calculated using only photoelectric times of minima. Four sets of orbital solutions were obtained using the Nelson-Davis-Etzel model giving reliable geometric elements for the system. The orbital separation, radii and masses of the stellar components are given in absolute units based on Popper's spectroscopic masses. The light curves exhibit small distortions in the maxima light levels which vary with phase. The system is composed of two well-detached, main sequence stars with the primary a G2 star and the secondary an early K star. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1981
Accession Number
ADA106743

Entities

People

  • Frank Allan Greenwood Jr

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Masses
  • Astronomy
  • Asymmetry
  • Brightness
  • Computers
  • Distortion
  • Ephemerides
  • Equations
  • Observatories
  • Physical Properties
  • Sequences
  • Space Sciences
  • Standards
  • Stars
  • Variable Stars

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Computer Programming and Software Development.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space