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arXiv 2405.20140astro-ph.IMastro-ph.COastro-ph.EPastro-ph.GAastro-ph.SR
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阿塔卡马大孔径亚毫米望远镜(AtLAST)的关键科学驱动力

The key science drivers for the Atacama Large Aperture Submillimeter Telescope (AtLAST)

Mark Booth, Pamela Klaassen, Claudia Cicone, Tony Mroczkowski, Sven Wedemeyer, Kazunori Akiyama, Geoffrey Bower, Martin A. Cordiner, Luca Di Mascolo, Doug Johns… 展开作者

Mark Booth, Pamela Klaassen, Claudia Cicone, Tony Mroczkowski, Sven Wedemeyer, Kazunori Akiyama, Geoffrey Bower, Martin A. Cordiner, Luca Di Mascolo, Doug Johnstone, Eelco van Kampen, Minju M. Lee, Daizhong Liu, John Orlowski-Scherer, Amélie Saintonge, Matthew Smith, Alexander E. Thelen

AI总结:

本文介绍了AtLAST望远镜的关键科学驱动力,指出需建造高吞吐量单天线设施以解决重子分布等天体物理问题,其50m口径和1-2°视场将带来灵敏度和测绘速度的数量级提升。

摘要:

亚毫米和毫米波长提供了对宇宙的独特视角,从充满并环绕星系的气体和尘埃,到我们太阳的色球层。目前的单天线设施展示了最明亮(亚)毫米源的诱人景象,干涉仪也提供了分析小视场细节所需的极高分辨率,但仍有许多悬而未决的问题无法用现有设施解答:所有的重子在哪里?结构如何与其环境相互作用?时变的(亚)毫米天空是什么样?为了在这些及其他问题上取得重大进展,现在需要一种能够从空间、光谱和时间维度快速绘制天空的设施,这只能由高吞吐量的单天线天文台实现。目前正在进行这项新设施的广泛设计研究。本文重点关注关键科学驱动力及其对天文台提出的要求。作为一台50m单天线望远镜,拥有1-2°视场,Atacama Large Aperture Submillimeter Telescope (AtLAST) 的优势在于大视场、高度多路复用的仪器以及对微弱大尺度结构敏感的科学领域。AtLAST旨在成为一个可持续、可升级、多用途的设施,相比现有和计划中的望远镜,其灵敏度和测绘速度将提升数个数量级。

英文摘要:

Sub-mm and mm 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: Where are all the baryons? How do structures interact with their environments? What does the time-varying (sub-)mm sky look like? In order to make major advances on these questions and others, what is needed now is a facility capable of rapidly mapping the sky spatially, spectrally, and temporally, which can only be done by a high throughput, single-dish observatory. An extensive design study for this new facility is currently being undertaken. In this paper, we focus on the key science drivers and the requirements they place on the observatory. As a 50m single dish telescope with a 1-2° field of view, the strength of the Atacama Large Aperture Submillimeter Telescope (AtLAST) is in science where a large field of view, highly multiplexed instrumentation and sensitivity to faint large-scale structure is important. 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 telescopes.

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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