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    Ultrastable environment control for the NEID spectrometer: design and performance demonstration

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    Author
    Kaplan, Kyle F.
    Affiliation
    Univ Arizona, Dept Astron & Steward Observ
    Issue Date
    2019-01
    Keywords
    spectrometers
    radial velocities
    vacuum systems
    temperature control
    
    Metadata
    Show full item record
    Publisher
    SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
    Citation
    Paul Robertson, Tyler Anderson, Gudmundur Stefansson, Frederick R. Hearty, Andrew Monson, Suvrath Mahadevan, Scott Blakeslee, Chad Bender, Joe P. Ninan, David Conran, Eric Levi, Emily Lubar, Amanda Cole, Adam Dykhouse, Shubham Kanodia, Colin Nitroy, Joseph Smolsky, Demetrius Tuggle, Basil Blank, Matthew Nelson, Cullen Blake, Samuel Halverson, Chuck Henderson, Kyle F. Kaplan, Dan Li, Sarah E. Logsdon, Michael W. McElwain, Jayadev Rajagopal, Lawrence W. Ramsey, Arpita Roy, Christian Schwab, Ryan Terrien, and Jason T. Wright "Ultrastable environment control for the NEID spectrometer: design and performance demonstration," Journal of Astronomical Telescopes, Instruments, and Systems 5(1), 015003 (23 March 2019). https://doi.org/10.1117/1.JATIS.5.1.015003
    Journal
    JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS
    Rights
    © 2019 SPIE.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Two key areas of emphasis in contemporary experimental exoplanet science are the detailed characterization of transiting terrestrial planets and the search for Earth analog planets to be targeted by future imaging missions. Both of these pursuits are dependent on an order-of-magnitude improvement in the measurement of stellar radial velocities (RV), setting a requirement on single-measurement instrumental uncertainty of order 10 cm/s. Achieving such extraordinary precision on a high-resolution spectrometer requires thermomechanically stabilizing the instrument to unprecedented levels. We describe the environment control system (ECS) of the NEID spectrometer, which will be commissioned on the 3.5-m WIYN Telescope at Kitt Peak National Observatory in 2019, and has a performance specification of on-sky RV precision <50 cm/s. Because NEID's optical table and mounts are made from aluminum, which has a high coefficient of thermal expansion, sub-milliKelvin temperature control is especially critical. NEID inherits its ECS from that of the Habitable-Zone Planet Finder (HPF), but with modifications for improved performance and operation near room temperature. Our full-system stability test shows the NEID system exceeds the already impressive performance of HPF, maintaining vacuum pressures below 10(-6) Torr and a root mean square (RMS) temperature stability better than 0.4 mK over 30 days. Our ECS design is fully open-source; the design of our temperature-controlled vacuum chamber has already been made public, and here we release the electrical schematics for our custom temperature monitoring and control system. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE)
    ISSN
    2329-4124
    DOI
    10.1117/1.jatis.5.1.015003
    Version
    Final published version
    Sponsors
    JPL [1547612]; Center for Exoplanets and Habitable Worlds; Pennsylvania State University; Eberly College of Science; Pennsylvania Space Grant Consortium; NASA through the Sagan Fellowship Program by the NASA Exoplanet Science Institute; NASA Headquarters under the NASA Earth and Space Science Fellowship Program [NNX16AO28H]; NSF [AST-1006676, AST-1126413, AST-1310885]; NASA Astrobiology Institute (NAI) [NNA09DA76A]; Penn State Astrobiology Research Center
    ae974a485f413a2113503eed53cd6c53
    10.1117/1.jatis.5.1.015003
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    UA Faculty Publications

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