THE BALLOON-BORNE LARGE APERTURE SUBMILLIMETER TELESCOPE (BLAST) 2006: CALIBRATION AND FLIGHT PERFORMANCE
THE BALLOON-BORNE LARGE APERTURE SUBMILLIMETER TELESCOPE (BLAST) 2006: CALIBRATION AND FLIGHT PERFORMANCE
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气球载大口径亚毫米望远镜（BLAST）2006：校准和飞行性能
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
D. Wiebe
中科院分区：
文献类型：
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作者：
M. Truch;P. Ade;J. Bock;E. Chapin;M. Devlin;S. Dicker;M. Griffin;J. Gundersen;M. Halpern;P. Hargrave;D. Hughes;J. Klein;G. Marsden;P. Martin;P. Mauskopf;L. Moncelsi;C. Netterfield;L. Olmi;E. Pascale;G. Patanchon;M. Rex;D. Scott;C. Semisch;N. Thomas;C. Tucker;G. Tucker;M. Viero;D. Wiebe
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，红超巨星星星VY CMa被观测并用作主要的校准器。详细的整体BLAST 06校准程序进行了讨论。绝对校准的1σ不确定度在250、350和500 μm波段分别精确到9.5%、8.7%和9.2%。误差在波段之间高度相关，导致250-500 μm连续谱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。
The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) operated successfully during a 250 hr flight over Antarctica in 2006 December (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 1σ uncertainty on the absolute calibration is accurate to 9.5%, 8.7%, and 9.2% at the 250, 350, and 500 μm bands, respectively. The errors are highly correlated between bands resulting in much lower errors for the derived shape of the 250–500 μm continuum. The overall pointing error is < 5″ rms for the 36″, 42″, and 60″ beams. The performance of optics and pointing systems is discussed.