mJIVE-20 is the largest 20 cm VLBI imaging campaign undertaken to date. Using filler time on the Very Long Baseline Array, we are imaging hundreds of fields containing a strong calibrator source and using the the multi-field capability of the DiFX software correlator to image dozens of fainter sources within the primary beam. We expect to image over 30,000 radio sources from the FIRST survey and detect at least 5000 new VLBI sources with flux densities from 1 to 100 mJy.
Using this large sample of mJy VLBI objects, we will investigate the compact fraction of radio sources as a function of flux density, and combine our results with those from all-sky calibrator surveys and narrow-field, deep VLBI surveys to analyse the evolution of radio AGN from microJy to Jy flux densities.
We are making the results of these observations available as soon as the data are reduced, generally within 2 weeks of the observations. The latest list of detected sources, along with images of all detected sources and the phase reference sources, are available in the data products area. If you make use of these data in a publication, we kindly request that you provide a link to this webpage and cite the latest survey paper (see the publications area).