POSTER P904: VLBI data processing in CASA

ADASS posters are displayed all week

When

10:04 p.m., Nov. 9, 2023

Theme: Other creative topics in astronomical software

pretalxeposter

Over the past years Very Long Baseline Interferometry (VLBI) data processing in CASA has become a reality.  It is now a supported alternative to AIPS for continuum observations with the European VLBI Network (EVN) and has established itself as one of the two official calibration pipelines for the Event Horizon Telescope (EHT).  It can also be used for (EVN) spectral line observations, many Very Long Baseline Array (VLBA) observations and observations by other (long baseline) radio arrays such as LOFAR-VLBI, e-MERLIN and GMVA.  A comprehensive CASA-based VLBI pipeline that supports many of these arrays is available in the form of rPICARD.

This presentation will give an overview of VLBI functionality in CASA, as well as current and future developments that are needed to make sure data processing software keeps track with other technical and scientific developments in VLBI and future developments like the ngVLA.  It will provide some interesting examples on how basing these developments on a packages written in "modern" languages like C++ and Python eases improvements of existing algorithms and implementation of new algorithms.

Contacts

Mark Kettenis, JIVE