SADIE: The San Diego Imaging Echelle for the Keck Telescope

将为凯克望远镜建造一台中红外(4至27微米)成像梯形光谱仪。该仪器被称为SADIE(圣地亚哥成像Echelle)，将是一种通用用户仪器，服务于加州大学、加州理工大学和夏威夷大学天文学社区及其合作者。这是目前为凯克望远镜提出的唯一专用红外光谱仪器。由于凯克望远镜巨大的聚光能力和前所未有的中红外空间分辨率，SADIE将使其用户社区在许多天体物理感兴趣的领域取得重大进展。这些领域包括但不限于：(1)活动星系和类星体，(2)正常星系附近，(3)恒星形成，(4)行星状星云，(5)星际和星际物质，(6)新星和超新星，(7)恒星系统的动力学，和(8)太阳系天体。由于这是一种通用仪器，赛迪将使用各种光栅，包括Littrow配置中的低阶梯形。赛迪的分光计光学馈电杂质带传导受阻，直接读出阵列焦平面。由于赛迪的多功能设计，它将能够进行宽带和窄带成像，以及光谱分辨率为100、800和7000的两个平板尺度，每像素0.4和0.2角秒。由AeroJet电子系统公司制造的20 X元素阵列将在所有光谱分辨率下提供有限的背景性能。SADIE的设计允许整合更大的阵列，AeroJet承诺向UCSD提供其新的100 X 100像素电容式反馈IBC阵列的样品。如果这些阵列被证明是合适的，它们将为赛迪提供一个自然的升级。

A mid-infrared (4 to 27 micron meters) imaging echelle spectrometer will be built for the Keck Telescope. The instrument, dubbed SADIE (San Diego Imaging Echelle), is to be a general purpose user instrument serving all of the University of California, Caltech, and University of Hawaii astronomical community as well as their collaborators. It is the only dedicated infrared spectroscopic instrument currently proposed for the Keck Telescope. Due to the huge light gathering power and unprecedented mid-IR spatial resolution of the Keck Telescope, SADIE will allow its user community to make significant advances in many areas of astrophysical interest. Such areas include, but are not restricted to, studies of (1) active galaxies and QSOs, (2) nearby normal galaxies, (3) star formation, (4) planetary nebulae (5) interstellar and circumstellar matter, (6) novae and supernovae, (7) the dynamics of stellar systems, and (8) solar systems objects. Because it is a general purpose instrument, SADIE will use a variety of gratings, including a low order echelle in Littrow configuration. SADIE's spectrometer optics feed a blocked impurity band conduction, direct readout array focal plane. Because of SADIE's versatile design, it will be capable of broad and narrow band imaging as well as spectroscopy at spectral resolutions of 100, 800, and 7000 at two plate scales, 0.4 and 0.2 arcsec per pixel. The 20 X 64 element array, built by Aerojet ElectroSystems, will provide background limited performance at all spectral resolutions. SADIE is designed to allow the incorporation of much larger arrays, a commitment by Aerojet exists to provide UCSD with samples of their new 100 X 100 pixel, capacitive feedback IBC arrays. If these arrays prove suitable, they will provide a natural upgrade for SADIE.