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arXiv 0904.1202astro-ph.IM
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星载大口径亚毫米波望远镜(BLAST)2006:定标和飞行性能

The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) 2006: Calibration and Flight Performance

Matthew D. P. Truch, Peter A. R. Ade, James J. Bock, Edward L. Chapin, Mark J. Devlin, Simon R. Dicker, Matthew Griffin, Joshua O. Gundersen, Mark Halpern, Pete… 展开作者

Matthew D. P. Truch, Peter A. R. Ade, James J. Bock, Edward L. Chapin, Mark J. Devlin, Simon R. Dicker, Matthew Griffin, Joshua O. Gundersen, Mark Halpern, Peter C. Hargrave, David H. Hughes, Jeff Klein, Gaelen Marsden, Peter G. Martin, Philip Mauskopf, Lorenzo Moncelsi, Calvin B. Netterfield, Luca Olmi, Enzo Pascale, Guillaume Patanchon, Marie Rex, Douglas Scott, Christopher Semisch, Nicholas E. Thomas, Carole Tucker, Gregory S. Tucker, Marco P. Viero, Donald V. Wiebe

摘要:

2006年12月,在南极洲上空飞行了250小时(BLAST 06)的南极星载大孔径亚毫米望远镜(BLAST)成功运行。作为校准和指向程序的一部分,红超巨星VY CMa被观测并用作主要校准器。详细的整体BLAST 06校准程序进行了讨论。1-sigma绝对校准在250、350和500微米波段分别精确到10%、12%和13%。误差在带之间高度相关,导致250-500微米连续体的导出形状的误差低得多。对于36“、42”和60”光束,总体指向误差<5”rms。光学和指向系统的性能进行了讨论。

英文摘要:

The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) operated successfully during a 250-hour flight over Antarctica in December 2006 (BLAST06). As part of the calibration and pointing procedures, the red hypergiant star VY CMa was observed and used as the primary calibrator. Details of the overall BLAST06 calibration procedure are discussed. The 1-sigma absolute calibration is accurate to 10, 12, and 13% at the 250, 350, and 500 micron bands, respectively. The errors are highly correlated between bands resulting in much lower error for the derived shape of the 250-500 micron continuum. The overall pointing error is <5" rms for the 36, 42, and 60" beams. The performance of the optics and pointing systems is discussed.

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