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arXiv 2602.20340astro-ph.GA
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ALMA中心分子区探索调查(ACES)I:概述

ALMA Central Molecular Zone Exploration Survey (ACES) I: Overview

Steven N. Longmore, John Bally, Ashley T. Barnes, Cara Battersby, Laura Colzi, Adam Ginsburg, Jonathan D. Henshaw, Paul T. P. Ho, Izaskun Jiménez-Serra, J. M. D… 展开作者

Steven N. Longmore, John Bally, Ashley T. Barnes, Cara Battersby, Laura Colzi, Adam Ginsburg, Jonathan D. Henshaw, Paul T. P. Ho, Izaskun Jiménez-Serra, J. M. Diederik Kruijssen, Elisabeth A. C. Mills, Maya A. Petkova, Mattia C. Sormani, Robin G. Tress, Daniel L. Walker, Jennifer Wallace, Emad Alkhuja, Lucia Armillotta, Nazar Budaiev, Rojita Buddhacharya, Alyssa Bulatek, Michael Burton, Natalie O. Butterfield, Laura A. Busch, Paola Caselli, Mélanie Chevance, Claire Cook, Samuel Crowe, Ana Karla Díaz-Rodríguez, Enrico DiTeodoro, Simon R. Dicker, Katarzyna M. Dutkowska, Adam Fairley, Christoph Federrath, Rubén Fedriani, Zi-Xuan Feng, Karl Fiteni, Gary Fuller, Pablo García, Javier Goicoechea, Philipp Girichidis, Simon C. O. Glover, Mark Gorski, Savannah R. Gramze, Qi-Lao Gu, H. Perry Hatchfield, Christian Henkel, Rebecca J. Houghton, Pei-Ying Hsieh, Yue Hu, Katharina Immer, Desmond Jeff, Janik Karoly, Jens Kauffmann, Ralf S. Klessen, Mark R. Krumholz, Alex Lazarian, Emily M. Levesque, Fu-Heng Liang, Dani Lipman, Xunchuan Liu, Xing Lu, Qiu-yi Luo, Alessandro Lupi, Laura McCafferty, S. Martín, Farideh Mazoochi, Mark R. Morris, Marie Nonhebel, Francisco Nogueras-Lara, Tomoharu Oka, Juergen Ott, Marco Padovani, Xing Pan, Jaime E. Pineda, Thushara G. S. Pillai, Marc W. Pound, Miguel Requena Torres, Denise Riquelme-Vásquez, Víctor M. Rivilla, Galaxy Salo, Álvaro Sánchez-Monge, Miriam G. Santa-Maria, Rainer Schoedel, Anika Schmiedeke, Matthias Schultheis, Howard A. Smith, Yoshiaki Sofue, Leonardo Testi, Grant R. Tremblay, Arianna Vasini, Gijs Vermariën, Alexey Vikhlinin, Serena Viti, Q. Daniel Wang, Fengwei Xu, Suinan Zhang, Qizhou Zhang

AI总结:

ACES调查利用ALMA高分辨率观测银河系中心分子区,揭示恒星形成与反馈机制,探索其全球过程对星形成位置和时间的影响。

摘要:

银河系内区域的物质流动和能量循环对银河系人口的演化产生强大影响。银河系中心是唯一能够解析驱动这些循环的物理机制(即恒星形成和反馈)以及追踪全球(>100 pc)过程的银河核区,这些过程决定了恒星形成和反馈的发生位置和时间。我们介绍了ACES,即“阿塔卡马大毫米/亚毫米波阵列(ALMA)中心分子区探索调查”,这是一个角分辨率约为1.5

英文摘要:

The mass flows and energy cycles within the inner regions of galaxies exert a powerful influence on the evolution of the galaxy population. The centre of the Milky Way is the only galactic nucleus for which it is possible to resolve the physical mechanisms that drive these cycles, namely star formation and feedback, while also tracing global (>100 pc) processes which determine where and when star formation and feedback occur. We present an overview of ACES, the 'Atacama Large Millimeter/submillimeter Array (ALMA) CMZ Exploration Survey', a ~1.5" angular resolution, 0.2-3 km/s spectral resolution ALMA Band 3 (85-102 GHz), survey of the 'Central Molecular Zone' (CMZ) -- the inner-100 pc of the Galaxy (l = 359.4 deg to 0.8 deg). ACES spectral setup is tuned to observe optimal tracers of the physical, chemical, and kinematic conditions in over 70 spectral features (e.g. HCO+, HNCO, SiO, H40alpha, complex molecules) of the gas in the CMZ, to derive the properties of all potentially star-forming Galactic Centre gas, from global scales (100 pc) to dense ~0.05 pc structures that are expected to host individual star-forming cores, down to sub-sonic (<0.4 km/s) velocity resolution. In this overview paper, we provide the scientific justification for the ACES survey, explain the choice of observational setup, and describe the data legacy products. Finally, we show some of the initial ACES data which highlight the power of ACES' combination of high angular resolution, unprecedented spatial dynamic range, sensitivity, spectral resolution and spectral bandwidth as an illustration of how ACES aims to understand how global processes set the location, intensity, and timescales for star formation and feedback in the CMZ.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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