UV capabilities of the CETUS multi-object spectrometer (MOS) and NUV/FUV camera

Stephen E. Kendrick; Robert A. Woodruff; Tony Hull; Sara R. Heap; Alexander Kutyrev; William Danchi; Lloyd Purves

doi:10.1117/12.2314114

6 July 2018 UV capabilities of the CETUS multi-object spectrometer (MOS) and NUV/FUV camera

Stephen E. Kendrick, Robert A. Woodruff, Tony Hull, Sara R. Heap, Alexander Kutyrev, William Danchi, Lloyd Purves

Proceedings Volume 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray; 1069939 (2018) https://doi.org/10.1117/12.2314114
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Cosmic Evolution Through UV Spectroscopy (CETUS) concept^1-3enables parallel observations by the UV multiobject spectrometer (MOS) and near-UV/far-UV camera which operate simultaneously but independently with their separate field of views. The near-UV MOS can target up to 100 objects at a time without confusion with nearby sources or background zodiacal light. This multiplexing will allow over 100,000 galaxies to be observed over a typical mission lifetime. The MOS includes a next-generation micro-shutter array (NGMSA), an efficient aspheric Offner-like spectrometer design with a convex grating, and nanotube light traps for suppressing unwanted wavelengths. The NUV/FUV Camera has the capability to image in a range of sub-bands from 115-400 nm at the same time the MOS is operating at 180-350 nm. The UV camera has a similar Offner-like relay, selectable filters, and two separate detectors to optimize observing in either the far-UV (115-175 nm) or the near-UV (180-400 nm) utilizing a CsI Micro-Channel Plate detector (MCP) and a CCD respectively.

Citation Download Citation

Stephen E. Kendrick, Robert A. Woodruff, Tony Hull, Sara R. Heap, Alexander Kutyrev, William Danchi, and Lloyd Purves "UV capabilities of the CETUS multi-object spectrometer (MOS) and NUV/FUV camera", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 1069939 (6 July 2018); https://doi.org/10.1117/12.2314114

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