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arXiv 2606.06005astro-ph.GA
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本地红外明亮并合体IRASF01364-1042中的多相双锥外流

The Multi-phase Biconical Outflow in the local IR-Luminous Merger IRASF01364-1042

European Southern Observatory(欧洲南方天文台);Joint ALMA Observatory(ALMA联合 observatory);Max-Planck-Institut für Radioastronomie(马克斯·普朗克射电天文研究所);IPAC, California Institute of Technology(加州理工学院 IPAC);Instituto de Astrofísica de Canarias(加那利群岛天体物理学研究所);Departamento de Astrofísica, Universidad de La Laguna(拉帕尔马大学天体物理学系);Ritter Astrophysical Research Center and Department of Physics and Astronomy, University of Toledo(托莱多大学里特天体物理研究中心及物理与天文学系);National Radio Astronomy Observatory(国家射电天文台);Department of Astronomy, University of Virginia(弗吉尼亚大学天文学系)
Y. Song, V. U, J. Kader, M. Bianchin, J. Agostino, L. Barcos-Muñoz, N. Torres-Albà, A. Medling, C. Ricci, L. Armus, T. Lai, L. Ghodsi, A. Evans, H. Inami, S. St… 展开作者

Y. Song, V. U, J. Kader, M. Bianchin, J. Agostino, L. Barcos-Muñoz, N. Torres-Albà, A. Medling, C. Ricci, L. Armus, T. Lai, L. Ghodsi, A. Evans, H. Inami, S. Stierwalt, T. Bohn, K. L. Emig, V. Buiten, G. Donnelly, E. Treister, A. Jimenez-Gallardo, T. Böker, D. Kakkad, S. Linden, P. van der Werf, V. Charmandaris, R. Remigio, L. Lenkic, C. Finlez, M. Sanchez-García, C. Lofaro, A. Saravia, I. Yoon, G. C. Privon, T. Gao, H. Aziz, R. McGurk, T. Díaz-Santos, D. Kunneriath, David B. Sanders

AI总结:

利用JWST/MIRI-MRS、ALMA和Keck/KCWI的多波段IFU数据,研究本地红外明亮并合体IRAS F01364-1042中电离、暖分子和冷分子气体的多相双锥外流,发现冷分子相主导质量外流率和动能,并首次通过[Ne V]探测证实尘埃遮蔽的AGN,但核星暴可能足以驱动外流。

摘要:

我们研究了本地($z = 0.048$)、红外明亮($L_{\rm IR} = 10^{11.87}$\,L$_\odot$)的晚期星系并合体IRAS F01364-1042的空间分辨星际介质性质,结合来自\textit{JWST/MIRI-MRS}、ALMA和Keck/KCWI的多波段IFU观测。利用这些数据集,我们构建了电离气体(例如[Ne\,II]\,12.8$\mu$m、[O\,III]$\lambda5007$)、暖分子气体(例如\ce{H2}\,0-0\,S(3))和冷分子气体(例如CO (J$=2-1$))的几个关键示踪物的发射线图,并对发射区域中分辨区域提取的光谱进行了详细分解。我们确认了沿高度倾斜旋转盘的短轴存在多相星系双锥外流。推断的电离、暖分子和冷分子相的外流速度分别为$\sim\,$500 - 600\,km\,s$^{-1}$、$\sim\,$350\,km\,s$^{-1}$和$\sim\,$200 - 300\,km\,s$^{-1}$,相应的质量外流率分别为$\sim 0.3 - 2.3$、$\sim 31$和$\sim 38 - 240$\,M$_\odot\,$yr$^{-1}$。冷分子相主导了总质量外流率和相关的动能($\sim\,2 - 8 \times 10^{42}$\,erg\,s$^{-1}$)。我们首次通过检测[Ne\,V]\,14.3$\mu$m线确认了IRAS\,F01364-1042中尘埃遮蔽的AGN。推断的AGN热光度较低($1.2 - 1.8 \times 10^{43}$\,erg\,s$^{-1}$),表明仅核星暴(恒星形成率约$\sim 40 - 60$\,M$_\odot$\,yr$^{-1}$)就可以提供驱动外流所需的能量,尽管近期可能更活跃的AGN阶段也可能发挥了作用。我们的工作展示了多波段观测对于解释并合驱动尘埃星暴中气体动力学的必要性,以及\textit{JWST/MIRI-MRS}揭示这些系统中可能普遍存在的遮蔽低光度AGN的能力。

英文摘要:

We investigate the spatially-resolved ISM properties of the local ($z = 0.048$), IR-luminous ($L_{\rm IR} = 10^{11.87}$\,L$_\odot$), late-stage galaxy merger IRAS F01364-1042, combining multi-wavelength IFU observations from \textit{JWST/MIRI-MRS}, ALMA and Keck/KCWI. Using these datasets, we construct emission line maps of several key tracers of the ionized (e.g., [Ne\,II]\,12.8$μ$m, [O\,III]$\lambda5007$), warm molecular (e.g., \ce{H2}\,0-0\,S(3)), and cold molecular gas (e.g., CO (J$=2-1$)), and perform detailed decomposition of spectra extracted in resolved regions across the areas of emission. We confirm the presence of a multi-phase galactic biconical outflow along the minor axis of a highly inclined rotating disk. The inferred outflow velocities are $\sim\,$500 - 600\,km\,s$^{-1}$ $\sim\,$350\,km\,s$^{-1}$, and $\sim\,$200 - 300\,km\,s$^{-1}$, in the ionized, warm and cold molecular phase, respectively, with corresponding mass outflow rates of $\sim 0.3 - 2.3$, $\sim 31$, and $\sim 38 - 240$\,M$_\odot\,$yr$^{-1}$. The cold molecular phase dominates both the total mass outflow rate and the associated kinetic energy ($\sim\,2 - 8 \times 10^{42}$\,erg\,s$^{-1}$). We confirm, for the first time, a dust-obscured AGN in IRAS\,F01364-1042, via detection of the [Ne\,V]\,14.3$μ$m line. The low inferred AGN bolometric luminosity ($1.2 - 1.8 \times 10^{43}$\,erg\,s$^{-1}$) suggests that the nuclear starburst alone, with a star formation rate of $\sim 40 - 60$\,M$_\odot$\,yr$^{-1}$, can account for the energy required to drive the outflow, though a more active AGN phase in the recent past may have also played a role. Our work showcases the necessity of multi-wavelength observations for interpreting the gas dynamics in merger-driven dusty starbursts, and the capability of \textit{JWST/MIRI-MRS} to uncover obscured, low-luminosity AGN that may be common in these systems.

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