Table · dataset · 2026
JWST COSMOS-3D [OIII] census and luminosity func.
Listed in IVOA Registry (Virtual Observatory)
We present a catalogue of spectroscopically-selected [OIII]+Hbeta emitters at 6.75<z<9.05 and the resulting [OIII] 5008{AA} Luminosity Function (LF) in the COSMOS field.
Description
We leverage the 0.33deg^2^ covered by COSMOS-3D using NIRCam/WFSS F444W to perform the largest spectroscopic search for [OIII] emitters at 6.75<z<9.05. We present our catalogue of 249 [OIII] emitters and their associated completeness function.
The inferred constraints on the [OIII] LF enable us to characterise the knee of the [OIII] 5008{AA} LF, resulting in improved [OIII] 5008{AA} LF constraints at z~7, 8. Notably, we find evidence for a decline of the [OIII] luminosity density between z~6-8, which could be expected if the metallicity of [OIII] emitters, as well as the cosmic star-formation rate density, is declining at these redshifts. We find that theoretical models that reproduce the z~7,8 [OIII] 5008{AA} LF do not reproduce well the [OIII] equivalent width distribution, pointing to potential challenges in the modelling of [OIII] and other nebular lines in the early Universe.
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Finally, we provide the first constraints on the cosmic variance of [OIII] emitters, estimating at 15% the fractional uncertainty for the z~7,8 [OIII] 5008{AA} LF in the 0.33deg^2^ field. This estimate is in good agreement with that inferred from clustering, and shows that the [OIII] 5008{AA} LF derived from smaller extragalactic legacy fields is strongly affected by cosmic variance. Our results highlight the fundamental role that wide-area JWST slitless surveys play to map the galaxy large-scale structure down into the reionisation era, serving as a springboard for a variety of science cases.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/712/A16 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...712A..16M ui.adsabs.harvard.edu/abs/2026A%26A...712A..16M ↗
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/712/a16 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Infrared
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Cosmology and extragalactic astronomy 75%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/712/a16 | 15 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 (75%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:infrared | 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 |