Table · dataset · 2025
FAST Ultra-Deep Survey: Data Release for FUDS0
Listed in IVOA Registry (Virtual Observatory)
We have used the Five-hundred-meter Aperture Spherical radio Telescope (FAST) to conduct a blind ultradeep survey for neutral hydrogen (HI).
Description
We present the complete results from the first of six fields (FUDS0). These observations of 95hr allowed us to achieve a high-sensitivity (~50{mu}Jy/beam) and a high-frequency resolution (22.9kHz) over an area of 0.72deg^2^.
We detected 128 galaxies in HI distributed over the redshift range of 0<z<0.4, with HI masses in the range of 6.67<=log(M_HI_/h_70_^-2^M_{sun}_)<=10.92, and three faint high-velocity clouds, with a peak column density of N_HI_<=3.1x10^17^cm^-2^. Of the galaxies, 95 are new detections and six have z>0.38, where no unlensed HI emission has previously been directly detected. Estimates of completeness and reliability are presented for the catalog.
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The consistency of continuum and HI flux estimates with the NRAO VLA Sky Survey and the Arecibo Ultra-Deep Survey, respectively, confirms the accuracy of the calibration method and data reduction pipeline developed for the full FAST Ultra-Deep Survey.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/274/18 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2024ApJS..274...18X ui.adsabs.harvard.edu/abs/2024ApJS..274...18X ↗
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/apjs/274/18 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Radio
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 72%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apjs/274/18 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (72%) |
| 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 | |
| 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 |