EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 448/1 Article
Free access article

Issue A&A
Volume 448, Number 1, March II 2006
Page(s) 283 - 292
Section Stellar structure and evolution
DOI http://dx.doi.org/10.1051/0004-6361:20053177



A&A 448, 283-292 (2006)
DOI: 10.1051/0004-6361:20053177

Separation of composite spectra: the spectroscopic detection of an eclipsing binary star

J. F. González and H. Levato

Complejo Astronómico El Leoncito (CASLEO), San Juan, Argentina
    e-mail: fgonzalez@casleo.gov.ar

(Received 1 April 2005 / Accepted 5 October 2005)

Abstract
We present an iterative method that allows us to compute the individual spectra and radial velocities of the two stellar components of spectroscopic binaries. We applied this method to HD 143511 and detected the occurrence of eclipses at the conjunction phases. The orbital analysis provides minimum masses with errors of 1%. Absolute masses and radii were derived in two different ways: a) by combining information provided by radial velocities, rotational velocities, and spectral line intensities; and b) using light curves from the ASAS-3 database.


Key words: techniques: radial velocities -- stars: binaries: spectroscopic -- stars: fundamental parameters -- stars: individual: HD 143511 -- Galaxy: open clusters and associations: individual: NGC 6025

SIMBAD Objects



© ESO 2006


What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.