The Bordeaux VLBI Image Database

A. Collioud and P. Charlot

Laboratoire d'Astrophysique de Bordeaux, Université de Bordeaux, CNRS, France

Poster

As part of its contribution to the International VLBI Service for Geodesy and Astrometry (IVS), the VLBI group at the Laboratoire d’Astrophysique de Bordeaux (LAB) produces VLBI images of reference frame sources. These sources are observed on a regular basis in order to monitor their structural evolution and positional stability. The images are used to derive structure correction maps and “structure indices” that characterize the astrometric suitability of the sources, with the aim to maintain, improve and extend the International Celestial Reference Frame (ICRF).

The Bordeaux VLBI Image Database (BVID) provides the community with more than 1500 VLBI images at 8.4 GHz and 2.3 GHz  (and for some sources, images at 24 and 43 GHz) for  more than 700 different reference frame sources, as well as more than 7500 structure correction maps and structure indices. The BVID can be queried by source name, by source coordinates and by observing date or experiment name. The amount of data available is constantly increasing with the processing of additional VLBI experiments. 

The Bordeaux VLBI Image Database (BVID) is available through the following web address: http://www.obs.u-bordeaux1.fr/BVID/.