论文标题
DUVET：通过星爆磁盘银河系中银河流出的星形流出的恒星形成调节的空间分辨观测
DUVET: Spatially Resolved Observations of Star Formation Regulation via Galactic Outflows in a Starbursting Disk Galaxy
论文作者
论文摘要
我们使用KCWI和NOEMA的测量值比较了500〜PC量表，对$ Z \ sim0.02的离子化和分子气体的解决观测值和分子气体的分子观测值。我们探讨了星形形成驱动的电离气体流出与共线的星系特性的关系。我们发现流出质量通量（$ \dotς_{\ rm out} $）与星形速率表面密度（$σ_{\ rm sfr} $），$ \dotς_ {\ rm out} \proptopOptoDς_ { $ \dotς_ {\ rm out} $与气体耗尽时间之间，使得$ \dotς_ {\ rm out} \ propto t_ {dep}^{ - 1.1 \ pm0.06} $。此外，我们发现这些流出是根据气体分数和磁盘运动学之间的关系所谓的``突破''流出。假设离子化的流出质量尺度与总流出质量相比，我们的观察结果表明，我们的观察结果表明，最高$σ_ {\ rm sfr} $ in iraS ins iraS08的最高$ cy necy consefies a gos a vive a vive youfly cass convernion confloff of Floff eyffly confroffing youflife youfly confloff convery convernection yous convernection neffloffing我们的观察结果均不在流出量。流出限制了磁盘区域保持短时间耗尽时间的能力。
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.
