Skip to main content

Three-dimensional Doppler tomograms and detection of motions beyond the orbital plane in close binary systems

Buy Article:

$63.00 plus tax (Refund Policy)


The newly developed radioastronomical approach (RA) has been modified for the reconstruction of three-dimensional (3D) Doppler tomograms. The RA permits an unequal space distribution of the views of an object and a reduction in the number of required orbital phases when compared with the filtered back-projection technique. The 3D Doppler tomogram of the close binary system U Coronae Borealis was reconstructed on the basis of 47 spectra of the Hα line. The three strongest Hα emission features found on the map were the accretion annulus, the gas stream moving along the ballistic trajectory, and a high-intensity region moving at high velocity in a direction across the orbital plane. It was not possible to discover this latter feature using standard two-dimensional Doppler tomography. The new RA technique is a useful tool for the subsequent study of gas flows in close binary systems.

Keywords: Accretion; Close binary stars; Doppler tomography

Document Type: Research Article


Affiliations: 1: Radiophysical Research Institute, Russia 2: Pennsylvania State University, University Park, PA, USA

Publication date: 2007-02-01

More about this publication?
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more