Radio Astronomy visibility data discovery and access using IVOA standards
Mireille Louys, Katharina Lutz, Yelena Stein, Anais Egner and, Fran\c{c}ois Bonnarel

TL;DR
This paper discusses extending IVOA standards to improve discovery and access of radio visibility data, integrating radio-specific metadata into virtual observatory infrastructure for better interoperability.
Contribution
It proposes a method to incorporate radio visibility data into IVOA standards, enabling refined discovery and metadata integration for radio astronomers.
Findings
Radio visibility data can be searched using ObsCore/ObsTAP
Radio-specific metadata are integrated via columns or DataLink
Dataset splitting enables multi-wavelength discovery
Abstract
Enhancing interoperable data access to radio data has become a science priority within the International Virtual Observatory Alliance (IVOA). This lead to the foundation of the IVOA Radio astronomy Interest Group. Several radio astronomers and project scientists enrolled in various projects (NRAO, ASKAP, LOFAR, JIVE, ALMA, SKA, INAF, NenuFAR, etc.) have joined. Together they are paving the way to a better integration of their services in the virtual observatory (VO) infrastructure and propose extension of IVOA standards to help achieving this goal. Calibrated radio datasets such as cubes, images, spectra and time series can already be searched and retrieved using the ObsCore/ObsTAP specification defined in the IVOA, or by data product-specific services like SIAv2, SODA, SSA and ConeSearch. However, properties of radio visibility data are not fully implemented in the VO landscape yet. We…
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Taxonomy
TopicsAstronomical Observations and Instrumentation · Astronomy and Astrophysical Research · Radio Astronomy Observations and Technology
