COSMOS VLA 3GHz Catalog

The catalog contains sources selected down to a 5 sigma (sigma~2.3 uJy/beam) threshold. This catalog can be used for statistical analyses, accompanied with the corrections given in the data & catalog release paper (Smolcic et al. 2016). All completeness & bias corrections and source counts presented in Smolcic et al. (2016) were calculated using this sample. The total fraction of spurious sources in the COSMOS 2 sq.deg. is below 2.7% within this catalog. However, an increase of spurious sources (up to 24% at 5.0

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier ivo://irsa.ipac/cosmos/catalog/cosmosvla3ghz
landingPage https://irsa.ipac.caltech.edu/data/COSMOS/gator_docs/cosmos_vla3ghz_colDescriptions.html
modified 2025-09-10
programCode {026:000}
publisher NASA/IPAC Infrared Science Archive
resource-type Dataset
source_datajson_identifier true
source_hash bdedbb44e16e4cd5e7d14fb8292c8fb74b360d8bef1ab04762a24c7f64756457
source_schema_version 1.1
theme {Astrophysics}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • na
isopen False
license_id notspecified
license_title License not specified
maintainer Tess Jaffe
maintainer_email tess.jaffe@nasa.gov
metadata_created 2025-09-29T14:38:33.756659
metadata_modified 2025-09-29T14:38:33.756664
notes The catalog contains sources selected down to a 5 sigma (sigma~2.3 uJy/beam) threshold. This catalog can be used for statistical analyses, accompanied with the corrections given in the data & catalog release paper (Smolcic et al. 2016). All completeness & bias corrections and source counts presented in Smolcic et al. (2016) were calculated using this sample. The total fraction of spurious sources in the COSMOS 2 sq.deg. is below 2.7% within this catalog. However, an increase of spurious sources (up to 24% at 5.0<S/N<5.5) is present (for details see Sec. 5.2., Fig. 16 and Tab 3 in the data & catalog release paper). A subsample with a minimal spurious source fraction can be selected by requiring a signal-to-noise ratio SNR # 5.5 (see Sec. 5.2., Fig. 16 and Tab 3 in the data & catalog release paper). The total fraction of spurious sources in the COSMOS 2 sq.deg. within such a selected sample is below 0.4%, and the fraction of spurious sources is below 3% even at the lowest SNR (=5.5).
num_resources 2
num_tags 9
title COSMOS VLA 3GHz Catalog