Table · dataset · 2026
NIKA2 PCCS2 catalog
Listed in IVOA Registry (Virtual Observatory)
The Planck Catalogue of Compact Sources (PCCS2) is an unbiased census of the millimetre sky at sub-Jansky levels, and thus a valuable resource for studies of galaxy evolution.
Description
Nevertheless, its application to extra-galactic studies is hindered by its limited angular resolution of few arcminutes. In order to open the PCCS2 for an in-depth exploitation, understanding their nature is paramount: are they active galactic nuclei, dusty star forming galaxies, proto-clusters, chance alignments?
Improving the positional information and angular resolution will also be beneficial in this quest. Here we aim to unveil the PCCS2 sources in the northern hemisphere. We observed the bright end of the 143 and 217GHz PCCS2 at Dec>=-41.2 degrees with the New IRAM KID Arrays 2 camera (NIKA2) at 1.2mm (260GHz) and 2.0mm (150GHz).
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The sample includes 487 targets. Map making and source extraction have been carried out with the latest version of the NIKA2 data reduction software. NIKA2 detected 54% and 77% of the targets at 1.2 and 2.0mm.
More than 95% are point-like sources, five are resolved in two components, and only 4% are extended at the resolution of NIKA2. By cross-matching the NIKA2 catalogue to the NASA Extragalactic Database, the redshift of ~86% of the sources was found, covering the range from z~0 to 3.4, with a median z=0.77. The number density of the 143 GHz PCCS2 is 0.029deg^-2^, in good agreement with model predictions.
Roughly 80% of these sources are QSOs or AGN, with a median NIKA2 spectral index alpha=-1.15, typical of non-thermal synchrotron emission. With a positional accuracy smaller than 3.0-arcsec, and an angular resolution of 11.6 and 18.0-arcsec at 1.2 and 2.0mm, respectively, the NIKA2 PCCS2 catalogue is hereby released to the community.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/708/L12 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...708L..12B ui.adsabs.harvard.edu/abs/2026A%26A...708L..12B ↗
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/a%2Ba/708/l12 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Radio
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/708/l12 | 11 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: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 |