arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2407.01413astro-ph.IMastro-ph.COastro-ph.EPastro-ph.GAastro-ph.SR
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AtLAST科学综述报告

AtLAST Science Overview Report

Mark Booth, Pamela Klaassen, Claudia Cicone, Tony Mroczkowski, Martin A. Cordiner, Luca Di Mascolo, Doug Johnstone, Eelco van Kampen, Minju M. Lee, Daizhong Liu… 展开作者

Mark Booth, Pamela Klaassen, Claudia Cicone, Tony Mroczkowski, Martin A. Cordiner, Luca Di Mascolo, Doug Johnstone, Eelco van Kampen, Minju M. Lee, Daizhong Liu, John Orlowski-Scherer, Amélie Saintonge, Matthew W. L. Smith, Alexander Thelen, Sven Wedemeyer, Kazunori Akiyama, Stefano Andreon, Doris Arzoumanian, Tom J. L. C. Bakx, Caroline Bot, Geoffrey Bower, Roman Brajša, Chian-Chou Chen, Elisabete da Cunha, David Eden, Stefano Ettori, Brandt Gaches, Evanthia Hatziminaoglou, Patricia Luppe, Benjamin Magnelli, Jonathan P. Marshall, Francisco Miguel Montenegro-Montes, Michael Niemack, Conor Nixon, Imke de Pater, Yvette Perrott, Sandra I. Raimundo, Elena Redaelli, Anita Richards, Matus Rybak, Nikolina Šarčević, Dmitry Semenov, Silvia Spezzano, Sundar Srinivasan, Thomas Stanke, Paola Andreani, Maria T. Beltrán, Bryan J. Butler, Sebastiano Cantalupo, Miguel Chavez Dagostino, Ana Duarte-Cabral, Bjorn Emonts, Leigh Fletcher, Dale E. Gary, Stanislav Gunar, Alvaro Hacar, Bendix Hagedorn, Tomek Kaminski, Fiona Kirton, Katherine de Kleer, Eduard Kontar, Yi-Jehng Kuan, John Lightfoot, Enrique Lopez-Rodriguez, Andreas Lundgren, Stefanie N. Milam, Atul Mohan, Raphael Moreno, Galina G. Motorina, Arielle Moullet, Kate Pattle, Alberto Pellizzoni, Nicolas Peretto, Joanna Ramasawmy, Claudio Ricci, Andrew J. Rigby, Álvaro Sánchez-Monge, Maryam Saberi, Masumi Shimojo, Aurora Simionescu, Mark Thompson, Alessio Traficante, Cristian Vignali, Stephen M. White

AI总结:

本报告概述了AtLAST(50米单天线亚毫米波望远镜)的科学设计动机,旨在通过大视场、高灵敏度和多路复用相机解决恒星形成、星系周介质等关键问题,并大幅提升灵敏度和测绘速度。

摘要:

亚毫米波和毫米波波长提供了对宇宙的独特视角,从填充并环绕星系的气体和尘埃,到我们太阳的色球层。当前的单天线设施已对最亮的(亚)毫米波源给出了诱人的观测结果,干涉仪则提供了分析小视场内细节所需的卓越分辨率,但仍有许多开放性问题无法用现有设施解答。本报告总结了指导阿塔卡马大型孔径亚毫米波望远镜(AtLAST)设计的科学目标。我们展示了在高红移星系中的恒星形成、弥散星系周介质、银河系生态、彗星成分和太阳耀斑等主题上的变革性进展,如何论证了建造一台口径50米、视场1至2度、配备新一代高度多路复用连续谱和光谱相机的单天线望远镜的必要性。AtLAST将具有大幅降低混淆极限的分辨率,相较于当前单天线设施,同时还能快速绘制大面积天区并探测延展的弥散结构。其高灵敏度和大视场将通过提高偶然探测的概率,开辟亚毫米波暂现源科学的新领域。最后,此处列出的科学案例论证了需要一种高度灵活的运行模式,能够支持对单个目标的短时观测、大型巡天、监测项目、目标机会观测以及与其他天文台的协调观测。AtLAST旨在成为一个可持续、可升级、多用途的设施,其灵敏度和测绘速度将比当前及计划中的亚毫米波天文台提高数个数量级。

英文摘要:

Submillimeter and millimeter wavelengths provide a unique view of the Universe, from the gas and dust that fills and surrounds galaxies to the chromosphere of our own Sun. Current single-dish facilities have presented a tantalising view of the brightest (sub-)mm sources, and interferometers have provided the exquisite resolution necessary to analyse the details in small fields, but there are still many open questions that cannot be answered with current facilities. In this report we summarise the science that is guiding the design of the Atacama Large Aperture Submillimeter Telescope (AtLAST). We demonstrate how tranformational advances in topics including star formation in high redshift galaxies, the diffuse circumgalactic medium, Galactic ecology, cometary compositions and solar flares motivate the need for a 50m, single-dish telescope with a 1-2 degree field of view and a new generation of highly multiplexed continuum and spectral cameras. AtLAST will have the resolution to drastically lower the confusion limit compared to current single-dish facilities, whilst also being able to rapidly map large areas of the sky and detect extended, diffuse structures. Its high sensitivity and large field of view will open up the field of submillimeter transient science by increasing the probability of serendipitous detections. Finally, the science cases listed here motivate the need for a highly flexible operations model capable of short observations of individual targets, large surveys, monitoring programmes, target of opportunity observations and coordinated observations with other observatories. AtLAST aims to be a sustainable, upgradeable, multipurpose facility that will deliver orders of magnitude increases in sensitivity and mapping speeds over current and planned submillimeter observatories.

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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