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Communication Dans Un Congrès Année : 2019

The Effect of Galactic Aberration on the CRF

D. Mayer
  • Fonction : Auteur
J. Böhm
  • Fonction : Auteur
H. Krásná
  • Fonction : Auteur
N. Liu
  • Fonction : Auteur

Résumé

We compare two Celestial Reference Frame (CRF) solutions made from Very Long Baseline Interferometry (VLBI) group delay observations in S/X band using vector spherical harmonics. In both solutions the same data set was used which consists of almost all observations since 1979 until the beginning of 2018. The same parameterization and models were used with the exception that in one of the solutions the effect of galactic aberration (GA) was corrected. The other solution serves as a reference. We show that the deformation of a CRF estimated with the whole set of VLBI observations can be described by a systematic dipole displacement with an amplitude of about 35 ?as.
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Dates et versions

hal-03802968 , version 1 (06-10-2022)

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Citer

D. Mayer, Sébastien Lambert, J. Böhm, H. Krásná, N. Liu. The Effect of Galactic Aberration on the CRF. International VLBI Service for Geodesy and Astrometry 2018 General Meeting Proceedings: "Global Geodesy and the Role of VGOS - Fundamental to Sustainable Development, Jun 2018, Longyearbyen, Norway, Norway. pp.169. ⟨hal-03802968⟩

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