Design of NEID, an extreme precision Doppler spectrograph for WIYN

C. Schwab, A. Rakich, Q. Gong, S. Mahadevan, S. P. Halverson, A. Roy, R. C. Terrien, P. M. Robertson, F. R. Hearty, E. I. Levi, A. J. Monson, J. T. Wright, M. W. McElwain, C. F. Bender, C. H. Blake, J. Stürmer, Y. V. Gurevich, A. Chakraborty, L. W. Ramsey

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

Abstract

We have developed an optical design for a high resolution spectrograph in response to NASA's call for an extreme precision Doppler spectrometer (EPDS) for the WIYN telescope. Our instrument covers a wavelength range of 380 to 930 nm using a single detector and with a resolution of 100,000. To deliver the most stable spectrum, we avoid the use of an image slicer, in favor of a large (195 mm diameter) beam footprint on a 1x2 mosaic R4 Echelle grating. The optical design is based on a classic white pupil layout, with a single parabolic mirror that is used as the main and transfer collimator. Cross dispersion is provided by a single large PBM2Y glass prism. The refractive camera consists of only four rotationally symmetric lenses made from i-Line glasses, yet delivers very high image quality over the full spectral bandpass. We present the optical design of the main spectrograph bench and discuss the design trade-offs and expected performance.

LanguageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy VI
EditorsChristopher J. Evans, Luc Simard, Hideki Takami
Place of PublicationWashington, US
PublisherSPIE
Pages1-6
Number of pages6
Volume9908
ISBN (Electronic)9781510601956
DOIs
Publication statusPublished - 2016
EventGround-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom
Duration: 26 Jun 201630 Jun 2016

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume9908
ISSN (Print)0277-786X

Other

OtherGround-Based and Airborne Instrumentation for Astronomy VI
CountryUnited Kingdom
CityEdinburgh
Period26/06/1630/06/16

Fingerprint

Spectrographs
Optical design
Optical Design
Spectrograph
Doppler
spectrographs
Extremes
Echelle
Glass
echelle gratings
Prism
NASA
Prisms
Spectrometer
Telescopes
Slice
Image Quality
Gratings
Image quality
Lens

Keywords

  • Doppler technique
  • Echelle spectrograph
  • Exoplanets
  • Fibre-fed spectrograph
  • Radial velocities

Cite this

Schwab, C., Rakich, A., Gong, Q., Mahadevan, S., Halverson, S. P., Roy, A., ... Ramsey, L. W. (2016). Design of NEID, an extreme precision Doppler spectrograph for WIYN. In C. J. Evans, L. Simard, & H. Takami (Eds.), Ground-Based and Airborne Instrumentation for Astronomy VI (Vol. 9908, pp. 1-6). [99087H] (Proceedings of SPIE; Vol. 9908). Washington, US: SPIE. https://doi.org/10.1117/12.2234411
Schwab, C. ; Rakich, A. ; Gong, Q. ; Mahadevan, S. ; Halverson, S. P. ; Roy, A. ; Terrien, R. C. ; Robertson, P. M. ; Hearty, F. R. ; Levi, E. I. ; Monson, A. J. ; Wright, J. T. ; McElwain, M. W. ; Bender, C. F. ; Blake, C. H. ; Stürmer, J. ; Gurevich, Y. V. ; Chakraborty, A. ; Ramsey, L. W. / Design of NEID, an extreme precision Doppler spectrograph for WIYN. Ground-Based and Airborne Instrumentation for Astronomy VI. editor / Christopher J. Evans ; Luc Simard ; Hideki Takami. Vol. 9908 Washington, US : SPIE, 2016. pp. 1-6 (Proceedings of SPIE).
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Schwab, C, Rakich, A, Gong, Q, Mahadevan, S, Halverson, SP, Roy, A, Terrien, RC, Robertson, PM, Hearty, FR, Levi, EI, Monson, AJ, Wright, JT, McElwain, MW, Bender, CF, Blake, CH, Stürmer, J, Gurevich, YV, Chakraborty, A & Ramsey, LW 2016, Design of NEID, an extreme precision Doppler spectrograph for WIYN. in CJ Evans, L Simard & H Takami (eds), Ground-Based and Airborne Instrumentation for Astronomy VI. vol. 9908, 99087H, Proceedings of SPIE, vol. 9908, SPIE, Washington, US, pp. 1-6, Ground-Based and Airborne Instrumentation for Astronomy VI, Edinburgh, United Kingdom, 26/06/16. https://doi.org/10.1117/12.2234411

Design of NEID, an extreme precision Doppler spectrograph for WIYN. / Schwab, C.; Rakich, A.; Gong, Q.; Mahadevan, S.; Halverson, S. P.; Roy, A.; Terrien, R. C.; Robertson, P. M.; Hearty, F. R.; Levi, E. I.; Monson, A. J.; Wright, J. T.; McElwain, M. W.; Bender, C. F.; Blake, C. H.; Stürmer, J.; Gurevich, Y. V.; Chakraborty, A.; Ramsey, L. W.

Ground-Based and Airborne Instrumentation for Astronomy VI. ed. / Christopher J. Evans; Luc Simard; Hideki Takami. Vol. 9908 Washington, US : SPIE, 2016. p. 1-6 99087H (Proceedings of SPIE; Vol. 9908).

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

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AU - Rakich, A.

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AU - Roy, A.

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AU - Robertson, P. M.

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AU - Ramsey, L. W.

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AB - We have developed an optical design for a high resolution spectrograph in response to NASA's call for an extreme precision Doppler spectrometer (EPDS) for the WIYN telescope. Our instrument covers a wavelength range of 380 to 930 nm using a single detector and with a resolution of 100,000. To deliver the most stable spectrum, we avoid the use of an image slicer, in favor of a large (195 mm diameter) beam footprint on a 1x2 mosaic R4 Echelle grating. The optical design is based on a classic white pupil layout, with a single parabolic mirror that is used as the main and transfer collimator. Cross dispersion is provided by a single large PBM2Y glass prism. The refractive camera consists of only four rotationally symmetric lenses made from i-Line glasses, yet delivers very high image quality over the full spectral bandpass. We present the optical design of the main spectrograph bench and discuss the design trade-offs and expected performance.

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KW - Echelle spectrograph

KW - Exoplanets

KW - Fibre-fed spectrograph

KW - Radial velocities

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VL - 9908

T3 - Proceedings of SPIE

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BT - Ground-Based and Airborne Instrumentation for Astronomy VI

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PB - SPIE

CY - Washington, US

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Schwab C, Rakich A, Gong Q, Mahadevan S, Halverson SP, Roy A et al. Design of NEID, an extreme precision Doppler spectrograph for WIYN. In Evans CJ, Simard L, Takami H, editors, Ground-Based and Airborne Instrumentation for Astronomy VI. Vol. 9908. Washington, US: SPIE. 2016. p. 1-6. 99087H. (Proceedings of SPIE). https://doi.org/10.1117/12.2234411