Table · dataset · 2026
GLIMPSE-D galaxies [OIII]5008/Hb ratios
Listed in IVOA Registry (Virtual Observatory)
We report the measurement of the R3=[OIII]5008/H{beta} ratios for 54 galaxies in the GLIMPSE-D survey.
Description
Thanks to gravitational lensing, our sample includes galaxies with -20<Muv<-14 at z=6-9. We derive oxygen abundances using calibrated relationships.
We observe a significant decline in R3 values below Muv>-18, which we interpret as evidence of decreasing metallicities in fainter regimes. We explore four prescription models of the evolution of R3 with UV emission based on the new measurements and results from previous surveys. Applying these models to the GLIMPSE [OIII]+H{beta} luminosity functions, we measure and extrapolate the ionising photon production rate dotNion of galaxies down to very faint limits SFR(Ha)>5x10^-3^M_{sun}+/yr.
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Our results support the dominant contribution of star-forming galaxies to reionisation, and are consistent with the recent discovery of ultra-faint metal-poor galaxies. Our measurements of the relative contribution of each luminosity bin show that galaxies with L(Ha)~1e41 to 1e42 erg/s dominate at 8<z<9, but the relative contributions become more uniform at 7<z<8. Extreme models either under- or over-estimate the ionising photon budget, while intermediate models align with recent observational constraints.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/710/L15 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...710L..15K ui.adsabs.harvard.edu/abs/2026A%26A...710L..15K ↗
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/710/l15 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Uv
- 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/a+a/710/l15 | 11 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:uv | 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 |