Two-Dimensional Time Delay Measurement of a fast Scintillator using VLBI arrays

Giuseppe Cimò
2009 Proceedings of The 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy and EVN Users Meeting — PoS(IX EVN Symposium)   unpublished
Scintillation of flat spectrum radio sources provides a unique instrument to study the characteristics of the electron density distribution throughout the interstellar medium as well as to study the microarcsecond structure of these compact radio objects. A new approach, using VLBI techniques, to measure the distance of the scattering screen in the interstellar medium will be described. The aim is to measure the time delay, caused by the scintillation pattern, between the different array
more » ... s. Results of recent EVN observations will be presented.
doi:10.22323/1.072.0013 fatcat:idhrromxzvf7tjxa3kmrg5dxuy