Effect of core-shifts on VLBI group-delays
Abstract
It is shown that the frequency-dependence of the location of AGN ``cores'' - the obvious reference points for defining source positions - is diluted when VLBI group-delay measurements are used.
- Publication:
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Memorie della Societa Astronomica Italiana
- Pub Date:
- 2012
- Bibcode:
- 2012MmSAI..83..970P
- Keywords:
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- Astrometry: VLBI