Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (23) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (3)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
An improved algorithm for the determination of the system parameters of a visual binary
Authors:
Eichhorn, Heinrich K.; Xu, Yu-Lin
Affiliation:
AA(Karlova Università, Prague, Czechoslovakia), AB(Florida, University, Gainesville)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 358, Aug. 1, 1990, p. 575-587. (ApJ Homepage)
Publication Date:
08/1990
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Binary Stars, Independent Variables, Least Squares Method, State Estimation, Stellar Systems, Algorithms, Equations Of State, Parameter Identification, Stellar Orbits
DOI:
10.1086/169010
Bibliographic Code:
1990ApJ...358..575E

Abstract

This paper presents a method for the determination of the system parameters of visual binaries from observed relative coordinates which is based on an algorithm previously proposed. This algorithm enforces rigorously all the available dynamical and geometrical constraints and obtains the definitive orbital parameters through a Jefferys-type least-squares adjustment. The iterations, carried out by a modified Marquardt algorithm, always converged. The method was used to estimate the sets of system parameters of the binary systems 51 Tau, Beta 738, and BD + 19 deg 5116. In addition to the data traditionally communicated, the covariane matrices of the system parameter sets, their efficiences, the correlation matrices of the original system parameter sets, and the set of natural parameters are given, together with their variances.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences


More Article Retrieval Options

HELP for Article Retrieval
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints