skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A preliminary light-curve analysis for the early-type binary HD 219634

Abstract

Differential B and V light curves are presented for the early-type double-lined binary HD 219634. A model has been fitted to the light curves, and to the light- and radial velocity curves in combination, using the Wilson-Divinney code which has been adapted to run on a microcomputer. The system is found to be detached, the filling factors for the two components being F(1) = O.49 and F(2) =0.86. The mass of the primary component appears to be relatively low for its spectral type but is consistent with the derived radius, according to published relationships among those parameters. 17 refs.

Authors:
; ;  [1]
  1. King's College, Edmonton (Canada) Alberta Univ., Edmonton (Canada)
Publication Date:
OSTI Identifier:
6002990
Resource Type:
Journal Article
Journal Name:
Publications of the Astronomical Society of the Pacific; (USA)
Additional Journal Information:
Journal Volume: 102; Journal ID: ISSN 0004-6280
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BINARY STARS; STAR MODELS; BRIGHTNESS; COMPUTER CODES; ECLIPSE; MASS; PHOTOMETRY; RADIAL VELOCITY; ROCHE EQUIPOTENTIALS; MATHEMATICAL MODELS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; STARS; VELOCITY; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources

Citation Formats

Martin, B E, Hube, D P, and Lyder, D A. A preliminary light-curve analysis for the early-type binary HD 219634. United States: N. p., 1990. Web. doi:10.1086/132778.
Martin, B E, Hube, D P, & Lyder, D A. A preliminary light-curve analysis for the early-type binary HD 219634. United States. https://doi.org/10.1086/132778
Martin, B E, Hube, D P, and Lyder, D A. 1990. "A preliminary light-curve analysis for the early-type binary HD 219634". United States. https://doi.org/10.1086/132778.
@article{osti_6002990,
title = {A preliminary light-curve analysis for the early-type binary HD 219634},
author = {Martin, B E and Hube, D P and Lyder, D A},
abstractNote = {Differential B and V light curves are presented for the early-type double-lined binary HD 219634. A model has been fitted to the light curves, and to the light- and radial velocity curves in combination, using the Wilson-Divinney code which has been adapted to run on a microcomputer. The system is found to be detached, the filling factors for the two components being F(1) = O.49 and F(2) =0.86. The mass of the primary component appears to be relatively low for its spectral type but is consistent with the derived radius, according to published relationships among those parameters. 17 refs.},
doi = {10.1086/132778},
url = {https://www.osti.gov/biblio/6002990}, journal = {Publications of the Astronomical Society of the Pacific; (USA)},
issn = {0004-6280},
number = ,
volume = 102,
place = {United States},
year = {Sat Dec 01 00:00:00 EST 1990},
month = {Sat Dec 01 00:00:00 EST 1990}
}