DUVET: Spatially Resolved Observations of Star Formation Regulation via Galactic Outflows in a Starbursting Disk Galaxy
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arXiv
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| Natura: | Preprint |
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2022
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| author | Chu, Bronwyn Reichardt Fisher, Deanne B. Bolatto, Alberto D. Chisholm, John Fielding, Drummond Berg, Danielle Cameron, Alex J. Glazebrook, Karl Herrera-Camus, Rodrigo Kacprzak, Glenn G. Lenkić, Laura Li, Miao McPherson, Daniel K. Nielsen, Nikole M. Obreschkow, Danail Vaught, Ryan J. Rickards Sandstrom, Karin |
| author_facet | Chu, Bronwyn Reichardt Fisher, Deanne B. Bolatto, Alberto D. Chisholm, John Fielding, Drummond Berg, Danielle Cameron, Alex J. Glazebrook, Karl Herrera-Camus, Rodrigo Kacprzak, Glenn G. Lenkić, Laura Li, Miao McPherson, Daniel K. Nielsen, Nikole M. Obreschkow, Danail Vaught, Ryan J. Rickards Sandstrom, Karin |
| contents | We compare 500~pc scale, resolved observations of ionised and molecular gas for the $z\sim0.02$ starbursting disk galaxy IRAS08339+6517, using measurements from KCWI and NOEMA. We explore the relationship of the star formation driven ionised gas outflows with colocated galaxy properties. We find a roughly linear relationship between the outflow mass flux ($\dotΣ_{\rm out}$) and star formation rate surface density ($Σ_{\rm SFR}$), $\dotΣ_{\rm out}\proptoΣ_{\rm SFR}^{1.06\pm0.10}$, and a strong correlation between $\dotΣ_{\rm out}$ and the gas depletion time, such that $\dotΣ_{\rm out} \propto t_{dep}^{-1.1\pm0.06}$. Moreover, we find these outflows are so-called ``breakout" outflows, according to the relationship between the gas fraction and disk kinematics. Assuming that ionised outflow mass scales with total outflow mass, our observations suggest that the regions of highest $Σ_{\rm SFR}$ in 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 for a region of a disk to maintain short depletion times. Our results underline the need for resolved observations of outflows in more galaxies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2211_02063 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | DUVET: Spatially Resolved Observations of Star Formation Regulation via Galactic Outflows in a Starbursting Disk Galaxy Chu, Bronwyn Reichardt Fisher, Deanne B. Bolatto, Alberto D. Chisholm, John Fielding, Drummond Berg, Danielle Cameron, Alex J. Glazebrook, Karl Herrera-Camus, Rodrigo Kacprzak, Glenn G. Lenkić, Laura Li, Miao McPherson, Daniel K. Nielsen, Nikole M. Obreschkow, Danail Vaught, Ryan J. Rickards Sandstrom, Karin Astrophysics of Galaxies We compare 500~pc scale, resolved observations of ionised and molecular gas for the $z\sim0.02$ starbursting disk galaxy IRAS08339+6517, using measurements from KCWI and NOEMA. We explore the relationship of the star formation driven ionised gas outflows with colocated galaxy properties. We find a roughly linear relationship between the outflow mass flux ($\dotΣ_{\rm out}$) and star formation rate surface density ($Σ_{\rm SFR}$), $\dotΣ_{\rm out}\proptoΣ_{\rm SFR}^{1.06\pm0.10}$, and a strong correlation between $\dotΣ_{\rm out}$ and the gas depletion time, such that $\dotΣ_{\rm out} \propto t_{dep}^{-1.1\pm0.06}$. Moreover, we find these outflows are so-called ``breakout" outflows, according to the relationship between the gas fraction and disk kinematics. Assuming that ionised outflow mass scales with total outflow mass, our observations suggest that the regions of highest $Σ_{\rm SFR}$ in 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 for a region of a disk to maintain short depletion times. Our results underline the need for resolved observations of outflows in more galaxies. |
| title | DUVET: Spatially Resolved Observations of Star Formation Regulation via Galactic Outflows in a Starbursting Disk Galaxy |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2211.02063 |