- The complete S5 polar cap sample: en route to phase-delay
global astrometry,
E. Ros, J. M. Marcaide, J. C. Guirado, M. A. Pérez-Torres,
Proceedings of the 5th EVN symposium,
229-230 (2000)
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- Abstract
We report on the present status of our S5 polar cap phase-connected
astrometry program.
We observe 13 radio sources in
the northernmost 20o of the sky
at the wavelengths of 3.6 cm and 2 cm, and we
plan to extend the program to 0.7 cm. We phase-connect jointly
all our data successfully. We image the radio sources
and some of them show morphological changes, in which astrometric
registration is needed to determine the kinematics of the
source components.
We aim at unprecedented astrometric accuracy and at a check of
the jet standard model at the 5-10 microarcsec/yr level.
Eduardo Ros
ros@mpifr-bonn.mpg.de