Table · dataset · 2026
JADES and FRESCO Ha-emitting galaxies at z=5.1-5.5
Listed in IVOA Registry (Virtual Observatory)
HDF850.1 is the brightest submillimeter galaxy (SMG) in the Hubble Deep Field.
Description
It is known as a heavily dust-obscured star-forming galaxy embedded in an overdense environment at z=5.18. With nine-band NIRCam images at 0.8-5.0{mu}m obtained through the JWST Advanced Deep Extragalactic Survey, we detect and resolve the rest-frame UV-optical counterpart of HDF850.1, which splits into two components because of heavy dust obscuration in the center.
The southern component leaks UV and H{alpha} photons, bringing the galaxy ~100 times above the empirical relation between infrared excess and UV continuum slope (IRX-{beta}UV). The northern component is higher in dust attenuation and thus fainter in UV and H{alpha} surface brightness. We construct a spatially resolved dust-attenuation map from the NIRCam images, well matched with the dust continuum emission obtained through millimeter interferometry.
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The whole system hosts a stellar mass of 10^10.8{\pm}0.1^M_{sun}_ and star formation rate (SFR) of 10^2.8{\pm}0.2^M_{sun}_/yr, placing the galaxy at the massive end of the star-forming main sequence at this epoch. We further confirm that HDF850.1 resides in a complex overdense environment at z=5.17-5.30, which hosts another luminous SMG at z=5.30 (GN10). The filamentary structures of the overdensity are characterized by 109 H{alpha}-emitting galaxies confirmed through NIRCam slitless spectroscopy at 3.9-5{mu}m, of which only eight were known before the JWST observations.
Given the existence of a similar galaxy overdensity in the GOODS-S field, our results suggest that 50%{\pm}20% of the cosmic star formation at z=5.1-5.5 occur in protocluster environments.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/961/69 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2024ApJ...961...69S ui.adsabs.harvard.edu/abs/2024ApJ...961...69S ↗
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/apj/961/69 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Image 65%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apj/961/69 | 12 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:infrared | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:uv | 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 |