Velocity dispersions in star-forming galaxies Virtual Observatory Resource

Authors
  1. Varidel M.R.
  2. Croom S.M.
  3. Lewis G.F.
  4. Fisher D.B.
  5. Glazebrook K.,Catinella B.
  6. Cortese L.
  7. Krumholz M.R.
  8. Bland-Hawthorn J.
  9. Bryant J.J.,Groves B.
  10. Brough S.
  11. Federrath C.
  12. Lawrence J.S.
  13. Lorente N.P.,Owers M.S.
  14. Richards S.N.
  15. Lopez-Sanchez A.R.
  16. Sweet S.M.
  17. van de Sande J.,Vaughan S.P.
  18. Published by
    CDS
Abstract

We infer the intrinsic ionized gas kinematics for 383 star-forming galaxies across a range of integrated star formation rates (SFR{in}[10^-3^, 10^2^]M_{sun}_/yr) at z~<0.1 using a consistent 3D forward-modelling technique. The total sample is a combination of galaxies from the Sydney-AAO Multiobject Integral field Spectrograph (SAMI) Galaxy survey and DYnamics of Newly Assembled Massive Objects survey. For typical low-z galaxies taken from the SAMI Galaxy Survey, we find the vertical velocity dispersion ({sigma}_v,z_) to be positively correlated with measures of SFR, stellar mass, HI gas mass, and rotational velocity. The greatest correlation is with SFR surface density ({Sigma}_SFR_). Using the total sample, we find {sigma}_v,z_ increases slowly as a function of integrated SFR in the range SFR{in}[10^-3^, 1] M_{sun}_/yr from 17+/-3 to 24+/-5km/s followed by a steeper increase up to {sigma}_v,z_~80km/s for SFR>~1M_{sun}_/yr. This is consistent with recent theoretical models that suggest a {sigma}_v,z_ floor driven by star formation feedback processes with an upturn in {sigma}_v,z_ at higher SFR driven by gravitational transport of gas through the disc.

Keywords
  1. galaxies
  2. redshifted
  3. star-forming-regions
  4. galaxy-kinematics
  5. visible-astronomy
Bibliographic source Bibcode
2020MNRAS.495.2265V
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/495/2265
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/495/2265
Document Object Identifer DOI
doi:10.26093/cds/vizier.74952265

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/495/2265
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/495/2265
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/495/2265
IVOA Table Access TAP
http://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/0?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/495/2265/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/495/2265/tablea1?

History

2023-09-05T15:16:17Z
Resource record created
2023-09-05T15:16:17Z
Created
2024-08-21T20:14:35Z
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