Differential Astrometry over 15 degrees

6533b82cfe1ef96bd128ed25

RESEARCH PRODUCT

Differential Astrometry over 15 degrees

M. A. Perez-torres J. M. Marcaide J. C. Guirado E. Ros

subject

Astrophysics (astro-ph)FOS: Physical sciences Astrophysics

description

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 degrees, and opens the avenue to its application to larger samples of radio sources.

year	journal	country	edition	language
1998-12-02

10.1016/s1387-6473(99)00059-7 http://arxiv.org/abs/astro-ph/9812056

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