Table · dataset · 2025
RACS VI. RACS-high 1655.5MHz catalogue
Listed in IVOA Registry (Virtual Observatory)
We have conducted a widefield, wideband, snapshot survey using the Australian SKA Pathfinder (ASKAP) referred to as the Rapid ASKAP Continuum Survey (RACS).
Description
RACS covers ~90% of the sky, with multiple observing epochs in three frequency bands sampling the ASKAP frequency range of 700-1800MHz. This work contains the catalogues from the third major epoch at 1655.5MHz, RACS-high.
From the 1493 images covering the sky up to declination +48 degrees, we present a catalogue of 2677509 radio sources and 3526674 Gaussian components. The catalogue is constructed from images with a median root-mean-square noise of 195uJy/beam and a median angular resolution of 11.8" by 8.1". The overall reliability of the catalogue is estimated to be 99.18%, and we find a decrease in reliability as angular resolution improves.
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We estimate the brightness scale to be accurate to 10%, and the astrometric accuracy to be within ~0.6" in right ascension and ~0.7" in declination after correction of a systematic declination-dependent offset. All data products from RACS-high, including calibrated visibility datasets, images from individual observations, full- sensitivity mosaics, and the all-sky catalogue are available at the CSIRO ASKAP Science Data Archive: doi.org/10.25919/g3jd-av02.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/other/PASA/42.38 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2025PASA...42...38D ui.adsabs.harvard.edu/abs/2025PASA...42...38D ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/other/pasa/42.38 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Image 65%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/other/pasa/42.38 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:radio | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (65%) |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |