Table · dataset · 2026
CHILES Con Pol catalog & images
Listed in IVOA Registry (Virtual Observatory)
The COSMOS H I Large Extragalactic Survey (CHILES) Continuum and Polarization survey is an ultradeep continuum imaging study of the COSMOS field conducted using the Karl G. Jansky Very Large Array.
Description
We obtained 1000hr of L-band ({lambda}=20cm) observations across four spectral windows (SPWs; 1.063-1.831GHz) in a single pointing and produced a confusion-limited image with an apparent rms noise of 1.67uJy/beam with a synthesized beam of 5.5"x5.0".
This paper reports a 1.4GHz radio continuum source catalog containing 1678 sources detected above 7{sigma} (flux densities greater than 11.7uJy), identified using two independent source extraction programs applied to the Stokes I image. Resolved sources dominate at flux density S_1.4GHz_>=42uJy. The radio spectral index for each source was derived using a power-law fit across the four SPWs, and we found that a robust spectral index measurement requires a total signal-to-noise ratio of at least 20.
Read the rest (1 more)
Comparisons with previous 1.4GHz radio continuum surveys show good overall consistency, but evidence for a high degree of catalog incompleteness and the effects of source confusion are evident for some of the earlier studies.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/60 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2025AJ....170...60G ui.adsabs.harvard.edu/abs/2025AJ....170...60G ↗
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/aj/170/60 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Radio
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Cosmology and extragalactic astronomy 76% · Image 75% · Imaging 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/aj/170/60 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:field:510103 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (76%) |
| concepts[field].local:field:astronomy | mapping · 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 (75%) |
| concepts[modality].local:modality:imaging | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (75%) |
| 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 |