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Detection of Brown Dwarfs with Astrometric Satellites

Published online by Cambridge University Press:  26 May 2016

Hans-Heinrich Bernstein
Hans-Heinrich Bernstein*
Affiliation:
Astronomisches Rechen-Institut, Mönchhofstraße 12 – 14, D-69120 Heidelberg, Germany

Abstract

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The first astrometric procedure for the detection of Brown Dwarfs as a double star component was accomplished for the HIPPARCOS project, using Fourier series for the description of the orbital motion of Brown Dwarfs, in connection with classical least squares techniques for the estimation of all relevant unknowns. The disadvantage of this procedure was an insufficient number of false decisions. Modern techniques of time series analysis allows a much better mathematical treatment of the physical phenomena. With respect to the large number of candidate objects and the enhanced accuracy of the new astrometric satellites, the introduction of a new approach for the astrometric detection of Brown Dwarfs is suggested.

Type
Part 9. Future Prospects
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 505 - 508
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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