Enabling a New Instrument 'IGRINS' for the Gemini South Telescope User Community

双子座天文台由两个大型天文望远镜组成，双子座北（位于夏威夷）和双子座南（位于智利）。每台望远镜都允许美国和双子座伙伴国家-阿根廷，巴西，加拿大和智利-的天文学家对行星，恒星和星系进行独特的观测。然而，现代望远镜的性能取决于与之配套使用的相机和光谱仪。因此，像双子座这样的国家天文台必须继续使安装在每台望远镜上的成套仪器现代化。提议者的目标是向双子座社区提供一种已经在较小的望远镜上建造和测试的仪器。需要资金来支持对该仪器进行适当的调整，以便它可以在双子座望远镜上使用。该仪器是一种光谱仪，将使研究人员能够非常详细地分析来自各种物体的红外光。令人震惊的数据已经在国家天文会议上发表并向社区展示，展示了该设备的功能和多功能性。一旦光谱仪安装在一个大得多的双子座望远镜上，预计会有重要的结果和新的发现，该提案试图改造浸没光栅红外光谱仪，这是一种近红外（H和K波段）高分辨率（R~ 45，000）单物体光谱仪，可用于双子座北望远镜或双子座南望远镜。提案人还将为社区提供观测支持。 IGRINS由德克萨斯大学奥斯汀分校（UT Austin）和韩国天文学和空间科学研究所（KASI）共同建造，作为巨型麦哲伦望远镜类似的未来仪器的前身。该仪器不含移动部件，并带有一个现有的数据简化管道;因此，对Gemini工作人员的未来开发和支持的需求可能是最小的。IGRINS已被用于麦克唐纳天文台的2.7米望远镜和4.3米发现频道望远镜，其性能已被证明超过其他4至8米级望远镜的类似仪器。提议者已经与天文台接洽，并通过竞争性审查程序，在2018年获得了135小时的望远镜时间，以实施“大型和长期”计划，以调查蛇夫座的年轻恒星天体（YSO）和行星系统。这些数据-将被压缩并存档供公众使用-将是迄今为止对YSO进行的最广泛的高分辨率、高信噪比光谱调查，并将成为星星形成界的宝贵资源。

The Gemini Observatory consists of two large astronomical telescopes, Gemini-North (situated in Hawaii) and Gemini-South (located in Chile). Each telescope allows astronomers in the US and the Gemini partner countries - Argentina, Brazil, Canada and Chile - to make unique observations of planets, stars, and galaxies. However, modern telescopes are only as good as the cameras and spectrometers used with them. It is therefore essential that a national observatory like Gemini continues to modernize the suite of instruments mounted on each telescope. The proposers aim to make available to the Gemini community an instrument that has already been built and tested on smaller telescopes. Funds are needed to support modest adaptation of the instrument so that it can be used on either Gemini telescope. The instrument, a spectrometer, will allow researches to analyze in great detail the infrared light from all manner of objects. Striking data have already been published and presented to the community at national astronomical meetings, demonstrating the power and versatility of the device. Important results and new discoveries are expected once the spectrometer is mounted on one of the much larger Gemini telescopes.The proposal seeks to adapt the Immersion GRating INfrared Spectrometer (IGRINS), a near-infrared (H- and K-band) high-resolution (R~45,000) single-object spectrometer for use on either the Gemini-North or Gemini-South telescope. The proposers will also provide observational support for the community. IGRINS was built jointly by the University of Texas at Austin (UT Austin) and the Korea Astronomy and Space Science Institute (KASI) as a precursor to a similar, future instrument for the Giant Magellan Telescope. The instrument contains no moving parts and comes with an existing data reduction pipeline; the need for future development and support by Gemini staff is thus likely to be minimal. IGRINS has been used on the McDonald Observatory 2.7-meter telescope and at the 4.3-meter Discovery Channel Telescope, where its performance has been shown to exceed that of similar instruments at other 4-to-8 meter class telescopes. The proposers have already approached the observatory and have secured, through a competitive review process, 135 hours of telescope time in 2018 to pursue a "Large and Long" program to survey Young Stellar Objects (YSOs) and planetary systems in Ophiuchius. The data -- to be reduced and archived for public use -- will represent the most extensive high-resolution, high-S/N, spectral survey of YSOs obtained to date, and will be a valuable resource to the star formation community.