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On the possibility of creating a radio-astronomical inertial coordinate system based on the measurement of arcs between QSOs with the aid of VLBI

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Résumé

Dans ce travail on discute le possibilité de formation du système précis (0″,001) inértial de coordonnées à l'aide de mésure de distances angulaires mutuels entre des quasars utilisant la technique radioastronomique de VLBI. Ce système ne depend pas de mouvement terrestre héliocentrique ainsi que de la rotation propre de terre. Ce dernière propriété permet de séparer les problèmes astrométriques et géophysiques. Le système proposé donne la possibilité de résoudre les problèmes générales astrométriques — l'étude de mouvement terrestre de précession et de nutation, de mouvement d'axe terrestre dans le corps de terre et l'étude de variation de la vitesse angulaire de terre.

Abstract

The aim of this paper has been to discuss a possibility of the formation of an inertial system of coordinates, precise within 0″.001, with the aid of the measures of mutual angular distances of quasars by the VLBI technique used in radio-astronomy. Such a system depends on neither the rotation, nor revolution of the Earth around the Sun — a fact which permits a separation of the astronomical and geophysical aspects of the problem. The proposed system should permit us to resolve some general astrometric problems — such as of the precession and nutation of the Earth as well as of the motion of the terrestrial axis of rotation within the Earth, or fluctuations in the angular veoocity of terrestrial rotation.

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Authors and Affiliations

  1. Special Astrophysical Observatory, U.S.S.R. Academy of Sciences, Leningrad, USSR

    A. F. Dravskikh & A. M. Finkelstein

  2. Institute for Theoretical Astronomy, U.S.S.R. Academy of Sciences, Leningrad, USSR

    G. A. Krasinsky

Authors
  1. A. F. Dravskikh
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  2. A. M. Finkelstein
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  3. G. A. Krasinsky
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Dravskikh, A.F., Finkelstein, A.M. & Krasinsky, G.A. On the possibility of creating a radio-astronomical inertial coordinate system based on the measurement of arcs between QSOs with the aid of VLBI. Astrophys Space Sci 38, 255–266 (1975). https://doi.org/10.1007/BF00647126

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  • DOI: https://doi.org/10.1007/BF00647126

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