BASE-LINE ERRORS IN EUROPEAN VLBI NETWORK MEASUREMENTS .3. THE DOMINANT EFFECT OF INSTRUMENTAL POLARIZATION

Authors
MASSI M RIOJA M GABUZDA D LEPPANEN K SANGHERA H RUF K MOSCADELLI L
Citation
M. Massi et al., BASE-LINE ERRORS IN EUROPEAN VLBI NETWORK MEASUREMENTS .3. THE DOMINANT EFFECT OF INSTRUMENTAL POLARIZATION, Astronomy and astrophysics, 318(1), 1997, pp. 32-34
Citations number
7
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
318
Issue
1
Year of publication
1997
Pages
32 - 34
Database
ISI
SICI code
0004-6361(1997)318:1<32:BEIEVN>2.0.ZU;2-N
Abstract
In this paper, we compare the results of a VLBI observation involving 7 European telescopes with the model by Massi et al. 1996 for the cont ribution of the instrumental polarization to the closure phase. The ex cellent agreement found between model predictions and data proves that the systematic error present in European VLBI data is in fact due to the high instrumental polarization of some of the telescopes and can b e removed by data processing.