arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1808.06648astro-ph.IM
收藏

西蒙斯天文台大口径接收机模拟概述

Simons Observatory large aperture receiver simulation overview

John L. Orlowski-Scherer, Ningfeng Zhu, Zhilei Xu, Aamir Ali, Kam S. Arnold, Peter C. Ashton, Gabriele Coppi, Mark Devlin, Simon Dicker, Nicholas Galitzki, Patr… 展开作者

John L. Orlowski-Scherer, Ningfeng Zhu, Zhilei Xu, Aamir Ali, Kam S. Arnold, Peter C. Ashton, Gabriele Coppi, Mark Devlin, Simon Dicker, Nicholas Galitzki, Patricio A. Gallardo, Brian Keating, Adrian T. Lee, Michele Limon, Marius Lungu, Andrew May, Jeff McMahon, Michael D. Niemack, Lucio Piccirillo, Giuseppe Puglisi, Maria Salatino, Max Silva-Feaver, Sara M. Simon, Robert Thornton, Eve M. Vavagiakis

摘要:

西蒙斯天文台将使用一系列望远镜对宇宙微波背景进行精确的温度和偏振测量,这些望远镜的角度范围从1角分到几十度,包含60,000多个探测器,采样频率在27至270千兆赫之间。SO将由一个6米口径的望远镜与30,000多个探测器以及一个半米口径折射相机阵列组成,这些相机共同耦合到另外30,000多个探测器。SO将测量我们宇宙的基本宇宙学参数,通过Sunyaev-Zeldovich效应发现高红移星系团,限制中微子的性质,并通过引力透镜寻找暗物质的特征。在本文中,我们将介绍SO大口径望远镜接收机(LATR)的模拟结果。我们将展示为确保接收器的结构完整性和热性能而进行的模拟的细节,并将展示结构支撑系统设计的有限元分析(FEA)结果。此外,将描述LATR的完整热模型。该模型将用于确保我们满足设计要求。最后,我们将介绍用于识别主要振动模式的FEA结果,以及抑制这些模式的计划方法。设计解决方案,这些问题已被告知模拟将被提交。

英文摘要:

The Simons Observatory (SO) will make precision temperature and polarization measurements of the cosmic microwave background (CMB) using a series of telescopes which will cover angular scales between one arcminute and tens of degrees, contain over 60,000 detectors, and sample frequencies between 27 and 270 GHz. SO will consist of a six-meter-aperture telescope coupled to over 30,000 detectors along with an array of half-meter aperture refractive cameras, which together couple to an additional 30,000+ detectors. SO will measure fundamental cosmological parameters of our universe, find high redshift clusters via the Sunyaev-Zeldovich effect, constrain properties of neutrinos, and seek signatures of dark matter through gravitational lensing. In this paper we will present results of the simulations of the SO large aperture telescope receiver (LATR). We will show details of simulations performed to ensure the structural integrity and thermal performance of our receiver, as well as will present the results of finite element analyses (FEA) of designs for the structural support system. Additionally, a full thermal model for the LATR will be described. The model will be used to ensure we meet our design requirements. Finally, we will present the results of FEA used to identify the primary vibrational modes, and planned methods for suppressing these modes. Design solutions to each of these problems that have been informed by simulation will be presented.

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。

↑