Outflows in star-forming galaxies Virtual Observatory Resource

Authors
  1. Roberts-Borsani G.W.
  2. Saintonge A.
  3. Masters K.L.
  4. Stark D.V.
  5. Published by
    CDS
Abstract

Outflows form an integral component in regulating the gas cycling in and out of galaxies, although their impact on the galaxy hosts is still poorly understood. Here we present an analysis of 405 high mass (logM_*_/M_{sun}_>=10), star-forming galaxies (excluding AGN) with low inclinations at z~0, using stacking techniques of the Na D {lambda}{lambda}5889,5895{AA} neutral gas tracer in IFU observations from the MaNGA DR15 survey. We detect outflows in the central regions of 78/405 galaxies and determine their extent and power through the construction of stacked annuli. We find outflows are most powerful in central regions and extend out to ~1R_e_, with declining mass outflow rates and loading factors as a function of radius. The stacking of spaxels over key galaxy quantities reveals outflow detections in regions of high {Sigma}_SFR_ (>~0.01M_{sun}_yr^-1^kpc^-2^) and {Sigma}_M*_ (>=10^7^M_{sun}_kpc^-2^) along the resolved main sequence. Clear correlations with {Sigma}_SFR_ suggest it is the main regulator of outflows, with a critical threshold of ~0.01M_{sun}_yr^-1^kpc^-2^ needed to escape the weight of the disc and launch them. Furthermore, measurements of the H{delta} and D_n_4000 indices reveal virtually identical star formation histories between galaxies with outflows and those without. Finally, through stacking of HI 21cm observations for a subset of our sample, we find outflow galaxies show reduced HI gas fractions at central velocities compared to their non-detection control counterparts, suggestive of some removal of HI gas, likely in the central regions of the galaxies, but not enough to completely quench the host.

Keywords
  1. galaxies
  2. star-forming-regions
  3. redshifted
  4. astrometry
  5. visible-astronomy
Bibliographic source Bibcode
2020MNRAS.493.3081R
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/493/3081
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/493/3081
Document Object Identifer DOI
doi:10.26093/cds/vizier.74933081

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/493/3081/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/3081/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/3081/tablea1?

History

2023-07-19T14:10:31Z
Resource record created
2023-07-19T14:10:31Z
Created
2024-08-20T20:16:28Z
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