VCCS Epoch 1 Bright Catalog Release

The VLA Low Band Ionosphere and Transient Experiment (VLITE) is a commensal observing system on the Karl G. Jansky Very Large Array (VLA). A 64MHz sub-band centered at 340MHz is recorded and correlated for up to 18 antennas during nearly all regular VLA operations. Pipeline software calibrates and images the data within a few days after observation. Here we give a brief overview of the instrument and present the first epoch of the VLITE Commensal Sky Survey (VCSS). These data were taken simultaneously with the ongoing VLA Sky Survey (VLASS; url: https://science.nrao.edu/vlass/). VLITE breaks the continuous "on-the-fly" (OTF) VLASS scans into 2-second integrations and correlates these at a central "pointing" position every 1.5 degrees in right ascension. VLITE's field of view is 2 degrees across, while the declination rows are spaced by only 7.25', so there is a large overlap between each row and a high tolerance for failure. The data for each correlator position is imaged separately, corrected and weighted by an appropriately elongated primary beam model, and then combined in the image plane to create a mosaic of the sky. Catalogs of the sources in both the individual pointing images and the final mosaics are extracted using PyBDSF. In addition to providing a sky model at 340MHz, VCSS complements VLASS by providing source spectral indices and intermediate resolution images for extended sources. The observations also provide a rich database for transient searches

Cone search capability for table VIII/111/vcscat (VCSS Epoch 1 bright catalog release)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/VIII/111
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/VIII/111
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VIII/111
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/VIII/111
Provenance
Creator Peters W.; Polisensky E.; Brisken W.; Cotton W.; Clarke T.,Giacintucci; S.; Kassim N.
Publisher CDS
Publication Year 2022
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Natural Sciences; Observational Astronomy; Physics