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Galactic radioastronomy


  • VLBI observations of SN1979C, SN1993J,...
  • Radio emission computer modeling



  • Search of low mass stars and exo-planets with astrometric techniques


Extragalactic radioastronomy

Quasars and radiogalaxies

  • VLBI observations
  • Superluminal motions

Gravitational lenses

  • VLBI observations of quads

Multiwavelength Precision Differential Astrometry of a Complete Polar Cap Radio Sample


Radioastronomy technique

Advances in astrometry

  • Space
  • Millimeter range
  • With GPS data for ionospheric removal