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arXiv 0711.3465astro-ph
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星载大口径亚毫米波望远镜:BLAST

The Balloon-borne Large Aperture Submillimeter Telescope: BLAST

E. Pascale, P. A. R. Ade, J. J. Bock, E. L. Chapin, J. Chung, M. J. Devlin, S Dicker, M. Griffin, J. O. Gundersen, M. Halpern, P. C. Hargrave, D. H. Hughes, J. … 展开作者

E. Pascale, P. A. R. Ade, J. J. Bock, E. L. Chapin, J. Chung, M. J. Devlin, S Dicker, M. Griffin, J. O. Gundersen, M. Halpern, P. C. Hargrave, D. H. Hughes, J. Klein, C. J. MacTavish, G. Marsden, P. G. Martin, T. G. Martin, P. Mauskopf, C. B. Netterfield, L. Olmi, G. Patanchon, M. Rex, D. Scott, C. Semisch, N. Thomas, M. D. P. Truch, C. Tucker, G. S. Tucker, M. P. Viero, D. V. Wiebe

摘要:

大口径亚毫米波望远镜(英语:Large Aperture Submillimeter Telescope,缩写:BLAST)是一个亚轨道测量实验,旨在研究本地星系(包括银河系)和宇宙学距离星系中恒星形成的演化历史和过程。BLAST连续照相机由分布在3个阵列之间的270个探测器组成,在250、350和500微米的宽带(30%)光谱窗口中同时观察。光学设计是基于一个2米直径的望远镜,在250微米处提供30”的衍射极限分辨率。座舱指向系统可实现任意几何形状的光栅映射,可重复的位置精度为~30”;飞行后指向重建可达到~5”rms。机载望远镜控制软件允许自动执行预先选择的一组地图,并可选择手动操作。在本文中,我们描述的主要特点和测量的飞行性能的BLAST。BLAST在2003年进行了一次试飞,此后又进行了两次科学上富有成效的长时间气球飞行:2005年6月从瑞典ESRANGE(基律纳)到加拿大北部维多利亚岛的100小时飞行; 2006年12月从南极洲麦克默多站进行了250小时的绕极飞行。

英文摘要:

The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) is a sub-orbital surveying experiment designed to study the evolutionary history and processes of star formation in local galaxies (including the Milky Way) and galaxies at cosmological distances. The BLAST continuum camera, which consists of 270 detectors distributed between 3 arrays, observes simultaneously in broad-band (30%) spectral-windows at 250, 350, and 500 microns. The optical design is based on a 2m diameter telescope, providing a diffraction-limited resolution of 30" at 250 microns. The gondola pointing system enables raster mapping of arbitrary geometry, with a repeatable positional accuracy of ~30"; post-flight pointing reconstruction to ~5" rms is achieved. The on-board telescope control software permits autonomous execution of a pre-selected set of maps, with the option of manual override. In this paper we describe the primary characteristics and measured in-flight performance of BLAST. BLAST performed a test-flight in 2003 and has since made two scientifically productive long-duration balloon flights: a 100-hour flight from ESRANGE (Kiruna), Sweden to Victoria Island, northern Canada in June 2005; and a 250-hour, circumpolar-flight from McMurdo Station, Antarctica, in December 2006.

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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