Other
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999evga.conf..217c&link_type=abstract
13th Working Meeting on European VLBI for Geodesy and Astrometry, p. 217 - 233
Other
Scientific paper
The intrinsic radio structure of the extragalactic sources is one of the limiting errors in the analysis of astrometric and geodetic VLBI observations. By using VLBI images obtained with the Very Long Baseline Array, the authors evaluate this effect for 392 sources from the International Celestial Reference Frame (ICRF). Based on this evaluation, we define a "structure index", ranging from 1 for the very compact sources to 4 for the most extended sources, which can be used as an estimate of the astrometric suitability of the sources. The structure index distribution in each ICRF source category (defining, candidate, other) is presented. They also discuss the correlation between structure index and source position accuracy. This classification is useful to select the most compact sources to observe in future VLBI experiments and to down weight past observations on sources with excessive structure.
Charlot Patrick
Fey Alan Lee
No associations
LandOfFree
A Classification of ICRF Sources Based on Observed Structure for Ultra-precise VLBI Astrometry and Geodesy. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Classification of ICRF Sources Based on Observed Structure for Ultra-precise VLBI Astrometry and Geodesy., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Classification of ICRF Sources Based on Observed Structure for Ultra-precise VLBI Astrometry and Geodesy. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1448256