Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-03T01:42:40.301Z Has data issue: false hasContentIssue false
  • English
  • Français

Astrometric Standard Fields for CCD Observations of Double Stars

Published online by Cambridge University Press:  26 July 2016

D. Sinachopoulos ,
E. Oblak ,
M. Geffert ,
J. Colin ,
J.-F. LeCampion  and
U. Hopp
D. Sinachopoulos
Affiliation:
Royal Belgian Observatory, Av. Circulaire 3, B-1180 Bruxelles, Belgium
E. Oblak
Affiliation:
Observatoire de Besançon, 41 bis, Avenue de L'Observatoire, F-25010 Besançon, France
M. Geffert
Affiliation:
Sternwarte der Universität Bonn, W-5568 Daun, Germany
J. Colin
Affiliation:
Observatoire de Bordeaux, F-33270, France
J.-F. LeCampion
Affiliation:
Observatoire de Bordeaux, F-33270, France
U. Hopp
Affiliation:
Max-Planck-Institut für Astronomie, Königsstuhl 17, W-6900 Heidelberg 1, Germany

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The number of known double stars is steadily increasing, thanks to ground-based and space observations. Therefore the ratio of known double to single stars has to be revised upwards continuously. With the Hipparcos parallaxes it will be possible to get stellar statistics for precisely defined volumes of space. This will lead to strong constraints on all astrophysical calibrations of masses, spectral types and luminosities in the solar neighbourhood. A European network of laboratories was created in August 1990 in order to remedy the lack of photometric data for close visual double stars. This network intends to study all aspects of formation and evolution of double and multiple star systems. The immediate goal of the group is to provide the scientific community with a compilation of known photometric data on a large selection of close visual double stars and to significantly enlarge this information by new observations with modern devices. A photometric database of stellar systems is being compiled from most widely used photometric systems in collaboration with the ‘Centre de Données Stellaires’ of Strasbourg.

Type
Part Six: Calibration: Astrometric and Photometric
Information
Symposium - International Astronomical Union , Volume 161: Astronomy from Wide-Field Imaging , 1994 , pp. 291 - 293
Copyright
Copyright © Kluwer 1994 

References

Geffert, M., Sinachopoulos, D. and Guibert, J., 1992. IAU Coll. 135, 317.Google Scholar
Geffert, M., Tucholke, H.-J., Georgiev, Ts.B. and LeCampion, J.-F., 1991. Astron. Astrophys. Suppl., 91, 487.Google Scholar
Girard, T.M., Grundy, W.M., Lopez, C.E. and van Altena, W.F., 1989. Astron. J., 98, 227.Google Scholar
LeCampion, J.-F., Geffert, M., Dulou, M.R. and Colin, J., 1992. Astron. Astrophys. Suppl., 95, 233.Google Scholar
Tucholke, H.-J., Geffert, M. and Thé, P.S., 1986. Astron. Astrophys. Suppl., 66, 311.Google Scholar