Table · dataset · 2023
Outflows in star-forming galaxies
Listed in IVOA Registry (Virtual Observatory)
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.
Description
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.
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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.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/493/3081 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2020MNRAS.493.3081R ui.adsabs.harvard.edu/abs/2020MNRAS.493.3081R ↗
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/493/3081 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/mnras/493/3081 | 13 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:optical | 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 |