EP112
Probing mas-level optical structure with VLBI observations of Gaia detec
The goal of this project is to probe the optical structure of active galactic nuclei (AGNs) at milliarcsecond scales via synergism of VLBI and optical space astronomy techniques. The proposed EVN observations will improve accuracy of determination of projections of Gaia/VLBI position offsets to the jet direction that will be estimated from parsec-scale images for 171 sources. The analysis of Gaia/VLBI position offsets provides reach information about AGNs jets in optical range not accessible from direct observations. We will perform a statistical analysis of Gaia/VLBI offsets using the flux-limited sample. The aim of the statistical study is to decompose factors that cause observed Gaia/VLBI positional offsets: accretion disk, parsec-scale radio/optical core, or jets. Such a decomposition is problematic for individual AGNs, but achievable through analysis of the large complete sample.
Observation pages at the EVN archive:
Context for this dataThis data is part of the archive of VLBI data maintained by JIVE on behalf of the EVN, a network of radio telescopes located primarily in Europe and Asia, with additional antennas in South Africa. The EVN archive itself has the DOI https://doi.org/10.17616/R3Z197