Table · dataset · 2026
NOEMA [CII] images in luminous galaxies
Listed in IVOA Registry (Virtual Observatory)
We present observations from the Northern Extended Millimeter Array (NOEMA) of four luminous galaxies at z~6, when the Universe was less than 1Gyr old.
Description
These galaxies are detected in the [CII] 158um fine-structure line, and three also exhibit underlying dust continuum emission. The [CII] line velocities are offset by a few hundred km/s relative to the Ly{alpha} emission, possibly indicating the presence of outflows or a large reservoir of surrounding atomic gas.
From the combination of dust continuum and rest-frame UV emission, we estimate that approximately 50% of the star formation is obscured by dust, consistent with values found in other massive star-forming galaxies at similar redshifts. The [CII]-to-FIR luminosity ratios of the continuum-detected galaxies are elevated compared to nearby galaxies with similar FIR luminosities. In one system, J163026+4315, the [CII] emission is spatially resolved, allowing us to measure the source size and FIR surface brightness (FIR).
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We find that the [CII/FIR ratio as a function of FIR in this source follows the trends observed in both local and high-redshift galaxy populations. A kinematic analysis of the resolved [CII] emission provides tentative evidence for a rotating disk, although higher angular resolution data are needed to confirm this. These results demonstrate the power of NOEMA to probe the physical conditions and structure of the interstellar medium in galaxies in the first billion years of cosmic history.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/708/A361 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...708A.361M ui.adsabs.harvard.edu/abs/2026A%26A...708A.361M ↗
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/a361 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Radio
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 72% · Image 65%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/708/a361 | 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 | |
| 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 |