The NEID precision radial velocity spectrometer: fast, first-order wavefront correction

Jeffrey W. Percival*, Qian Gong, Daniel Harbeck, Emily Hunting, Kurt P. Jaehnig, Ming Liang, Sarah E. Logsdon, Michael W. Mcelwain, Jayadev Rajagopal, Christian Schwab, Michael P. Smith, Erik Timmermann, Marsha J. Wolf

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    2 Citations (Scopus)

    Abstract

    The NEID Port Adapter is the interface between the WIYN 3.5m Telescope and the NEID fiber-fed spectrometer. The spectrometer requires the stellar jitter to be controlled for 90% of the time to within 50 milli-arc seconds for visual magnitudes 12, and 200 milli-arc seconds for V-magnitudes 12-16. The NEID Port Adapter will use an Andor EMCCD with 13 micron pixels, and a tip/tilt piezo stage from nPoint with a lowest resonant mode of 479 Hz. We expect to meet the requirement with a closed-loop rate of 27 Hz. We have data taken at the WIYN telescope consisting of stellar centroids captured at a rate of 108.75 Hz, which we rebin to test the response at lower sampling rates. We present the results of feeding these waveforms into the nPoint controller and measuring the actual response.

    Original languageEnglish
    Title of host publicationGround-based and Airborne Instrumentation for Astronomy VII
    EditorsChristopher J. Evans, Luc Simard, Hideki Takami
    Place of PublicationBellingham, Washington
    PublisherSPIE
    Pages1-10
    Number of pages10
    ISBN (Electronic)9781510619586
    ISBN (Print)9781510619579
    DOIs
    Publication statusPublished - 8 Jul 2018
    EventGround-based and Airborne Instrumentation for Astronomy VII 2018 - Austin, United States
    Duration: 10 Jun 201814 Jun 2018

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume10702
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferenceGround-based and Airborne Instrumentation for Astronomy VII 2018
    Country/TerritoryUnited States
    CityAustin
    Period10/06/1814/06/18

    Keywords

    • NEID
    • tip-tilt
    • Wavefront correction
    • WIYN

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