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首页> 外文会议>Conference on Instrument Design and Performance for Optical/Infrared Ground-based Telescopes Pt.3, Aug 25-28, 2002, Waikoloa, Hawaii, USA >Performance of the FLAMINGOS Near-IR Multi-object Spectrometer and Imager and Plans for FLAMINGOS-2: a Fully Cryogenic Near-IR MOS for Gemini South
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Performance of the FLAMINGOS Near-IR Multi-object Spectrometer and Imager and Plans for FLAMINGOS-2: a Fully Cryogenic Near-IR MOS for Gemini South

机译：FLAMINGOS近红外多目标光谱仪和成像仪的性能以及FLAMINGOS-2的计划：Gemini South的全低温近红外MOS

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We report on the performance of FLAMINGOS, the world's first fully cryogenic near-IR multi-object spectrometer. FLAMINGOS has a fast all refractive optical system, which can be used at telescopes slower than f/7.5. This makes FLAMINGOS a very efficient wide-field imager when used on fast small aperture telescopes and a high AΩ spectrometer using laser machined aperture masks for MOS spectroscopy. FLAMINGOS uses a 2048x2048 HgCdTe HAWAII-2 array by the Rockwell Science Center. The array is read out through 32 amplifiers, which results in low overheads for observations. We describe both the operating characteristics of the HAWAII-2 array and of the array controller and data acquisition system. FLAMINGOS has been in operation for about 1.5 years and is now in routine use on four telescopes: The Kitt Peak 4-m and 2.1-m, the 6.5-m MMT and the 8-m Gemini South Telescope. We will describe the operating characteristics of FLAMINGOS on each of these telescopes that deliver fields-of-view from 21x21 arcminutes to 2.7x2.7 arcminutes and pixels from 0.6 arcseconds to 0.08 arcseconds. While providing a large AΩ product for fast telescopes (i.e. f/8), FLAMINGOS becomes progressively less efficient on slower telescopes. Since nearly all large telescopes have fairly slow optical systems (f/12 or slower) the combination of large aperture and slow optical systems makes FLAMINGOS ill suited for optimal performance on current large aperture telescopes. Thus, we are beginning construction of FLAMINGOS-2, which will be optimized for performance on the f/16 Gemini South 8-m telescope. Similar to FLAMINGOS, FLAMINGOS-2 will be fully refractive using grisms, laser machined aperture masks and a 2048x2048 HgCdTe HAWAII-2 array. FLAMINGOS-2 will provide a 6.1 arcminute field-of-view with 0.18 arcsecond pixels. FLAMINGOS-2 will also be designed to accept an f/32 beam from the Gemini South MCAO system.
机译：我们将报告世界上第一台全低温近红外多目标光谱仪FLAMINGOS的性能。 FLAMINGOS具有快速的全折射光学系统，可用于比f / 7.5慢的望远镜。这使得FLAMINGOS成为快速高效的小口径望远镜和高AΩ光谱仪（使用激光加工的孔径掩模进行MOS光谱分析）时非常有效的宽视场成像仪。 FLAMINGOS使用罗克韦尔科学中心的2048x2048 HgCdTe HAWAII-2阵列。该阵列通过32个放大器读出，从而降低了观察的开销。我们描述了HAWAII-2阵列以及阵列控制器和数据采集系统的运行特性。 FLAMINGOS已运行约1.5年，现已在四台望远镜上常规使用：基特峰4米和2.1米，6.5米MMT和8米双子座南望远镜。我们将在这两种望远镜中描述FLAMINGOS的工作特性，这些望远镜提供21x21弧分至2.7x2.7弧分的视场，以及0.6弧分至0.08弧分的像素。在为快速望远镜（即f / 8）提供较大的AΩ产品的同时，FLAMINGOS在慢速望远镜上的效率逐渐降低。由于几乎所有大型望远镜的光学系统都相当慢（f / 12或更慢），因此大光圈和慢光学系统的结合使得FLAMINGOS不适用于当前大口径望远镜的最佳性能。因此，我们开始建造FLAMINGOS-2，它将针对f / 16 Gemini South 8-m望远镜的性能进行优化。与FLAMINGOS相似，FLAMINGOS-2将使用磨粒，激光加工的光圈掩模和2048x2048 HgCdTe HAWAII-2阵列进行完全折射。 FLAMINGOS-2将提供6.1弧分的视野和0.18弧秒的像素。 FLAMINGOS-2还将被设计为接受来自Gemini South MCAO系统的f / 32光束。

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