Optical Positions Of Icrf Sources From Ctio 1.0m Data

M Zacharias,C T Berghea,Christopher Dieck,R P Dudik,Gregory S Hennessy,Daniel Veillette,Norbert Zacharias

VI REUNION DE ASTRONOMIA DINAMICA EN LATINOAMERICA (ADELA 2014)（2015）

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摘要

As part of the USNO radio-optical reference frame link project, data were taken with the CTIO 1.0 m telescope in 2009. First position results of 5 ICRF sources are presented as part of this primarily photometric investigation of optical counterparts.

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astrometry, quasars

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