论文标题

目标-JWST:在中红外的NGC 7469中解决环球气体动力学

GOALS-JWST: Resolving the Circumnuclear Gas Dynamics in NGC 7469 in the Mid-Infrared

论文作者

U, Vivian, Lai, Thomas, Bianchin, Marina, Remigio, Raymond P., Armus, Lee, Larson, Kirsten L., Diaz-Santos, Tanio, Evans, Aaron, Stierwalt, Sabrina, Law, David R., Malkan, Matthew A., Linden, Sean, Song, Yiqing, van der Werf, Paul P., Gao, Tianmu, Privon, George C., Medling, Anne M., Barcos-Muñoz, Loreto, Hayward, Christopher C., Inami, Hanae, Rich, Jeff, Aalto, Susanne, Appleton, Philip, Bohn, Thomas, Böker, Torsten, Brown, Michael J. I., Charmandaris, Vassilis, Finnerty, Luke, Howell, Justin, Iwasawa, Kazushi, Kemper, Francisca, Marshall, Jason, Mazzarella, Joseph M., McKinney, Jed, Muller-Sanchez, Francisco, Murphy, Eric J., Sanders, David, Surace, Jason

论文摘要

附近的发光红外星系(LIRG)NGC 7469拥有一个带有环核星形成环的Seyfert核,因此是研究Starburst的理想局部实验室 - 详细研究AGN连接。我们介绍了使用JWST中红外仪器获得的NGC 7469中央1.3 kpc区域的整体场观测。在4.9-7.6μm区域的分辨率下,分子和离子气体分布和运动学在100 pc的分辨率上检查,以研究受中央AGN影响的气体动力学。低离子化[Fe II]λ5.34μm和[AR II]λ6.99μm线在细胞核和Starburst环上明亮,而不是H2 S(5)λ6.91μm,该线在中心和周围的ISM上强烈峰值。高离子化[mg v]线已解决,并显示出与流出相关的宽阔,蓝光的组件。它具有几乎面对面的几何形状,该几何形状在细胞核上峰值峰值,最大速度达到-650 km/s,并且向东延伸约400 pc。来自AGN的H2和[Fe II] {\ sim} 180 PC的增强速度分散的区域也显示出高L(H2)/L(H2)/L(PAH)和L([Fe II])/L(PFα)/L(PFα)/L(PFα)比与Nucleus Pinoint Pointions nucpoint of Foerm的W和N的比率通过电离流出能量的构成,从而构成了一个构成的群体,并介绍了构成的范围。这些解决的核气动力学的中海观察结果证明了JWST的力量及其高敏性积分场光谱能力,可以解决附近LIRGS尘土飞扬岩心的超质量黑洞周围的反馈过程。

The nearby, luminous infrared galaxy (LIRG) NGC 7469 hosts a Seyfert nucleus with a circumnuclear star-forming ring and is thus the ideal local laboratory for investigating the starburst--AGN connection in detail. We present integral-field observations of the central 1.3 kpc region in NGC 7469 obtained with the JWST Mid-InfraRed Instrument. Molecular and ionized gas distributions and kinematics at a resolution of {\sim}100 pc over the 4.9 - 7.6μm region are examined to study gas dynamics influenced by the central AGN. The low-ionization [Fe II] λ5.34μm and [Ar II] λ6.99μm lines are bright on the nucleus and in the starburst ring, as opposed to H2 S(5) λ6.91μm which is strongly peaked at the center and surrounding ISM. The high-ionization [Mg V] line is resolved and shows a broad, blueshifted component associated with the outflow. It has a nearly face-on geometry that is strongly peaked on the nucleus, where it reaches a maximum velocity of -650 km/s, and extends about 400 pc to the East. Regions of enhanced velocity dispersion in H2 and [Fe II] {\sim}180 pc from the AGN that also show high L(H2)/L(PAH) and L([Fe II])/L(Pfα) ratios to the W and N of the nucleus pinpoint regions where the ionized outflow is depositing energy, via shocks, into the dense interstellar medium between the nucleus and the starburst ring. These resolved mid-infrared observations of the nuclear gas dynamics demonstrate the power of JWST and its high-sensitivity integral-field spectroscopic capability to resolve feedback processes around supermassive black holes in the dusty cores of nearby LIRGs.

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