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Proceedings Paper

The NEID precision radial velocity spectrometer: port adapter overview, requirements, and test plan
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Paper Abstract

The NEID spectrometer is an optical (380-930 nm), fiber-fed, precision Doppler spectrometer currently in de- velopment for the WIYN 3.5 m telescope at Kitt Peak National Observatory as part of the NN-EXPLORE partnership. Designed to achieve a radial velocity precision of < 30 cm/s, NEID will be sensitive enough to detect terrestrial-mass exoplanets around low-mass stars. Light from the target stars is focused by the telescope to a bent Cassegrain port at the edge of the primary mirror mechanical support. The specialized NEID “Port Adapter” system is mounted at this bent Cassegrain port and is responsible for delivering the incident light from the telescope to the NEID fibers. In order to provide stable, high-quality images to the science instrument, the Port Adapter houses several sub-components designed to acquire the target stars, correct for atmospheric dis- persion, stabilize the light onto the science fibers, and calibrate the spectrometer by injecting known wavelength sources such as a laser frequency comb. Here we provide an overview of the overall opto-mechanical design and system requirements of the Port Adapter. We also describe the development of system error budgets and test plans to meet those requirements.

Paper Details

Date Published: 27 July 2018
PDF: 10 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 1070267 (27 July 2018); doi: 10.1117/12.2312209
Show Author Affiliations
Sarah E. Logsdon, NASA Goddard Space Flight Ctr. (United States)
Michael W. McElwain, NASA Goddard Space Flight Ctr. (United States)
Qian Gong, NASA Goddard Space Flight Ctr. (United States)
Ming Liang, National Optical Astronomy Observatory (United States)
Fernando Santoro, ASTRO LLC (United States)
Christian Schwab, Macquarie Univ. (Australia)
Australian Astronomical Observatory (Australia)
Chad Bender, Steward Observatory, The Univ. of Arizona (United States)
Cullen Blake, Univ. of Pennsylvania (United States)
Samuel Halverson, MIT Kavli Institute for Astrophysics and Space Research (United States)
Fred Hearty, The Pennsylvania State Univ. (United States)
Emily Hunting, National Optical Astronomy Observatory (United States)
Kurt P. Jaehnig, Univ. of Wisconsin-Madison (United States)
Suvrath Mahadevan, The Pennsylvania State Univ. (United States)
Andrew J. Monson, The Pennsylvania State Univ. (United States)
Jeffrey W. Percival, Univ. of Wisconsin-Madison (United States)
Jayadev Rajagopal, National Optical Astronomy Observatory (United States)
Lawrence Ramsey, The Pennsylvania State Univ. (United States)
Arpita Roy, California Institute of Technology (United States)
Michael P. Smith, Univ. of Wisconsin-Madison (United States)
Ryan C. Terrien, Carleton College (United States)
Erik Timmermann, National Optical Astronomy Observatory (United States)
Phil Willems, Jet Propulsion Lab. (United States)
Marsha J. Wolf, Univ. of Wisconsin-Madison (United States)
Jason Wright, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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