Table · dataset · 2025
ATOMS IV Gas clumps properties and SFRs
Listed in IVOA Registry (Virtual Observatory)
We report the detection of radio recombination line (RRL) H_40{alpha}_ towards 75 sources, with data obtained from ACA (Atacama Compact 7 m Array) observations in the ATOMS (ALMA Three-millimeter Observations of Massive Star-forming regions) survey of 146 active Galactic star-forming regions.
Description
We calculated ionized gas mass and star formation rate (SFR) with H_40{alpha}_ line emission. The mass of ionized gas is significantly smaller than molecular gas mass, indicating that ionized gas is negligible in the star-forming clumps of the ATOMS sample.
The SFR estimated with RRL H_40{alpha}_ agrees well with that calculated with the total bolometric luminosity (L_bol_) when SFR => 5 M_{sun}_.Myr^-1^, suggesting that millimetre RRLs could well sample the upper part of the initial mass function and thus be good tracers of SFR. We also study the relationships between L_bol_ and the molecular line luminosities (L'_mol_) of CS J = 2-1 and HC3N J = 11-10 for all the 146 ATOMS sources.
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The L_bol_ - L'_mol_ correlations of both the CS J = 2-1 and HC3N J = 11-10 lines appear approximately linear and these transitions have success in predicting L_bol_ similar to that of more commonly used transitions. The L_bol_ -to- L'_mol_ ratios or SFR-to-mass ratios (star formation efficiency) do not change with galactocentric distances (R_GC_). Sources with H_40{alpha}_ emission (or H II regions) show higher L_bol_ -to- L'_mol_ ratios than those without H_40{alpha}_ emission, which may be an evolutionary effect.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/510/4998 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2022MNRAS.510.4998Z ui.adsabs.harvard.edu/abs/2022MNRAS.510.4998Z ↗
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/mnras/510/4998 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Millimeter · Radio
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Stellar astronomy and planetary systems 76%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/mnras/510/4998 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:field:510109 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (76%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:millimeter | source · 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 |