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Title: DUVET: Spatially Resolved Observations of Star Formation Regulation via Galactic Outflows in a Starbursting Disk Galaxy
Abstract

We compare 500 pc scale, resolved observations of ionized and molecular gas for thez∼ 0.02 starbursting disk galaxy IRAS08339+6517, using measurements from KCWI and NOEMA. We explore the relationship of the star-formation-driven ionized gas outflows with colocated galaxy properties. We find a roughly linear relationship between the outflow mass flux (Σ̇out) and star formation rate surface density (ΣSFR),Σ̇outΣSFR1.06±0.10, and a strong correlation betweenΣ̇outand the gas depletion time, such thatΣ̇outtdep1.1±0.06. Moreover, we find these outflows are so-calledbreakoutoutflows, according to the relationship between the gas fraction and disk kinematics. Assuming that ionized outflow mass scales with total outflow mass, our observations suggest that the regions of highest ΣSFRin IRAS08 are removing more gas via the outflow than through the conversion of gas into stars. Our results are consistent with a picture in which the outflow limits the ability of a region of a disk to maintain short depletion times. Our results underline the need for resolved observations of outflows in more galaxies.

 
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Award ID(s):
1816462
NSF-PAR ID:
10386746
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publisher / Repository:
DOI PREFIX: 10.3847
Date Published:
Journal Name:
The Astrophysical Journal
Volume:
941
Issue:
2
ISSN:
0004-637X
Format(s):
Medium: X Size: Article No. 163
Size(s):
["Article No. 163"]
Sponsoring Org:
National Science Foundation
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