ATOMS IV Gas clumps properties and SFRs Virtual Observatory Resource

Authors
  1. Zhang C.
  2. Evans N.J.
  3. Liu T.
  4. Wu J.-W.
  5. Wang K.
  6. Liu H.-L.
  7. Zhu F.-Y.,Ren Z.-Y.
  8. Dewangan L.K.
  9. Lee C.W.
  10. Li S.
  11. Bronfman L.
  12. Tej A.
  13. Li D.
  14. Published by
    CDS
Abstract

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. 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. 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.

Keywords
  1. milky-way-galaxy
  2. molecular-clouds
  3. molecular-physics
  4. radio-astronomy
  5. star-forming-regions
  6. millimeter-astronomy
  7. submillimeter-astronomy
  8. radio-sources
  9. astrometry
  10. photometry
  11. spectroscopy
Bibliographic source Bibcode
2022MNRAS.510.4998Z
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/510/4998
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/510/4998
Document Object Identifer DOI
doi:10.26093/cds/vizier.75104998

Access

IVOA Table Access TAP
https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/4998/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/4998/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/4998/table2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/4998/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/4998/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/4998/table3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/4998/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/4998/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/4998/table4?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/4998/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/4998/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/4998/table5?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/4998/table7?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/4998/table7?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/4998/table7?

History

2025-01-08T11:55:41Z
Resource record created
2025-01-08T11:55:41Z
Created
2025-02-24T20:16:50Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr