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RESEARCH PRODUCT
Differential astrometry over 15°
Miguel A. Pérez-torresJ. C. GuiradoEduardo RosJ. M. Marcaidesubject
PhysicsSpace and Planetary ScienceAngular distanceSkymedia_common.quotation_subjectVery-long-baseline interferometryAstronomyAstronomy and AstrophysicsAstrometryDifferential (mathematics)media_commondescription
Abstract We observed the pair of radio sources 1150+812 and 1803+784 in November 1993 with a VLBI array, simultaneously recording at 8.4 and 2.3 GHz. We determined the angular separation between the two sources with submilliarcsecond accuracy by using differential techniques. This result demonstrates the feasibility of high precision differential astrometry for radio sources separated in the sky by almost 15°, and opens the avenue to its application to larger samples of radio sources.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-11-01 | New Astronomy Reviews |