The Balloon-borne Large Aperture Submillimeter Telescope: BLAST
The Balloon-borne Large Aperture Submillimeter Telescope: BLAST
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DOI：
10.1086/588541
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发表时间：
2007-11
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通讯作者：
E. Pascale;E. Pascale;P. Ade;J. Bock;E. Chapin;J. Chung;J. Chung;M. Devlin;S. Dicker;M. Griffin;J. Gundersen;M. Halpern;P. Hargrave;D. Hughes;J. Klein;C. MacTavish;G. Marsden;P. Martin;T. G. Martin;P. Mauskopf;C. Netterfield;L. Olmi;G. Patanchon;M. Rex;D. Scott;C. Semisch;N. Thomas;M. Truch;C. Tucker;G. Tucker;M. Viero;D. Wiebe
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文献类型：
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作者：
E. Pascale;E. Pascale;P. Ade;J. Bock;E. Chapin;J. Chung;J. Chung;M. Devlin;S. Dicker;M. Griffin;J. Gundersen;M. Halpern;P. Hargrave;D. Hughes;J. Klein;C. MacTavish;G. Marsden;P. Martin;T. G. Martin;P. Mauskopf;C. Netterfield;L. Olmi;G. Patanchon;M. Rex;D. Scott;C. Semisch;N. Thomas;M. Truch;C. Tucker;G. Tucker;M. Viero;D. Wiebe
球载大口径亚毫米望远镜（BLAST）是一项亚轨道巡天实验，旨在研究局地星系（包括银河系）和宇宙学距离星系的演化历史和恒星形成过程。 BLAST 连续谱相机由分布在三个阵列之间的 270 个探测器组成，可在 250、350 和 500 μm 的宽带 (30%) 光谱窗口中同时观察。光学设计基于直径 2 m 的望远镜，在 250 μm 处提供 30 英寸的衍射极限分辨率。吊舱指向系统可实现任意几何形状的光栅映射，可重复位置精度约为 30 英寸；飞行后指向重建达到≲5″ rms。机载望远镜控制软件允许自主执行一组预选的地图，并可选择手动覆盖。在本文中，我们描述了 BLAST 的主要特征和测量的飞行性能。 BLAST 于 2003 年进行了一次试飞，此后进行了两次具有科学成果的长时间气球飞行：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出发，进行了 250 小时的环极飞行。
The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) is a suborbital 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 three arrays, observes simultaneously in broadband (30%) spectral windows at 250, 350, and 500 μm. The optical design is based on a 2 m diameter telescope, providing a diffraction-limited resolution of 30″ at 250 μm. The gondola pointing system enables raster mapping of arbitrary geometry, with a repeatable positional accuracy of ~30″; postflight pointing reconstruction to ≲5″ rms is achieved. The onboard telescope control software permits autonomous execution of a preselected 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 hr flight from ESRANGE (Kiruna), Sweden to Victoria Island, northern Canada in 2005 June; and a 250 hr, circumpolar flight from McMurdo Station, Antarctica, in 2006 December.