Investigating spectrograph design parameters with the Yale Doppler diagnostic facility

Christian Schwab, Thales Gutcke, Julien F P Spronck, Debra A. Fischer, Andrew Szymkowiak

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

Abstract

The detection of earth-like exoplanets with the Doppler technique requires extreme precision spectrographs stable over timescales of years. The precision requirement of 10 cm/s is equivalent to a relative uncertainty of 3x10 -10, and, with the typical dispersion of the Echelle spectrographs used for this purpose, translates to a shift of a few nanometers of the spectrum on the detector. Consequently, the instrument must be well understood and optimized in every component and detail. We describe the Yale Doppler diagnostic facility (YDDF), a dedicated bench mounted Echelle spectrograph in our lab at Yale University, which will be used to systematically study the influence of different components at this precision level. The spectrograph bench allows for a flexible optical configuration, high resolution and sampling, and wide spectral coverage. Further, we incorporated a turbulence and guiding simulator to realistically reproduce the situation at the telescope, enabling end-to-end tests of important parameters.

LanguageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy IV
EditorsIan S. McLean, Suzanne K. Ramsay, Hideki Takami
Place of PublicationBellingham, WA
PublisherSPIE
Pages1-10
Number of pages10
Volume8446
ISBN (Print)9780819491473
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventGround-Based and Airborne Instrumentation for Astronomy IV - Amsterdam, Netherlands
Duration: 1 Jul 20126 Jul 2012

Other

OtherGround-Based and Airborne Instrumentation for Astronomy IV
CountryNetherlands
CityAmsterdam
Period1/07/126/07/12

Fingerprint

Spectrographs
Spectrograph
Doppler
Parameter Design
spectrographs
Diagnostics
Echelle
seats
Exoplanets
extrasolar planets
Telescopes
simulators
Telescope
Turbulence
Time Scales
Simulator
Extremes
Coverage
High Resolution
Simulators

Keywords

  • Doppler method
  • Echelle
  • Exoplanets
  • Iodine cell
  • Radial velocities
  • Spectrograph
  • Spectroscopy

Cite this

Schwab, C., Gutcke, T., Spronck, J. F. P., Fischer, D. A., & Szymkowiak, A. (2012). Investigating spectrograph design parameters with the Yale Doppler diagnostic facility. In I. S. McLean, S. K. Ramsay, & H. Takami (Eds.), Ground-Based and Airborne Instrumentation for Astronomy IV (Vol. 8446, pp. 1-10). [844695] Bellingham, WA: SPIE. https://doi.org/10.1117/12.926357
Schwab, Christian ; Gutcke, Thales ; Spronck, Julien F P ; Fischer, Debra A. ; Szymkowiak, Andrew. / Investigating spectrograph design parameters with the Yale Doppler diagnostic facility. Ground-Based and Airborne Instrumentation for Astronomy IV. editor / Ian S. McLean ; Suzanne K. Ramsay ; Hideki Takami. Vol. 8446 Bellingham, WA : SPIE, 2012. pp. 1-10
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abstract = "The detection of earth-like exoplanets with the Doppler technique requires extreme precision spectrographs stable over timescales of years. The precision requirement of 10 cm/s is equivalent to a relative uncertainty of 3x10 -10, and, with the typical dispersion of the Echelle spectrographs used for this purpose, translates to a shift of a few nanometers of the spectrum on the detector. Consequently, the instrument must be well understood and optimized in every component and detail. We describe the Yale Doppler diagnostic facility (YDDF), a dedicated bench mounted Echelle spectrograph in our lab at Yale University, which will be used to systematically study the influence of different components at this precision level. The spectrograph bench allows for a flexible optical configuration, high resolution and sampling, and wide spectral coverage. Further, we incorporated a turbulence and guiding simulator to realistically reproduce the situation at the telescope, enabling end-to-end tests of important parameters.",
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Schwab, C, Gutcke, T, Spronck, JFP, Fischer, DA & Szymkowiak, A 2012, Investigating spectrograph design parameters with the Yale Doppler diagnostic facility. in IS McLean, SK Ramsay & H Takami (eds), Ground-Based and Airborne Instrumentation for Astronomy IV. vol. 8446, 844695, SPIE, Bellingham, WA, pp. 1-10, Ground-Based and Airborne Instrumentation for Astronomy IV, Amsterdam, Netherlands, 1/07/12. https://doi.org/10.1117/12.926357

Investigating spectrograph design parameters with the Yale Doppler diagnostic facility. / Schwab, Christian; Gutcke, Thales; Spronck, Julien F P; Fischer, Debra A.; Szymkowiak, Andrew.

Ground-Based and Airborne Instrumentation for Astronomy IV. ed. / Ian S. McLean; Suzanne K. Ramsay; Hideki Takami. Vol. 8446 Bellingham, WA : SPIE, 2012. p. 1-10 844695.

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

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AB - The detection of earth-like exoplanets with the Doppler technique requires extreme precision spectrographs stable over timescales of years. The precision requirement of 10 cm/s is equivalent to a relative uncertainty of 3x10 -10, and, with the typical dispersion of the Echelle spectrographs used for this purpose, translates to a shift of a few nanometers of the spectrum on the detector. Consequently, the instrument must be well understood and optimized in every component and detail. We describe the Yale Doppler diagnostic facility (YDDF), a dedicated bench mounted Echelle spectrograph in our lab at Yale University, which will be used to systematically study the influence of different components at this precision level. The spectrograph bench allows for a flexible optical configuration, high resolution and sampling, and wide spectral coverage. Further, we incorporated a turbulence and guiding simulator to realistically reproduce the situation at the telescope, enabling end-to-end tests of important parameters.

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Schwab C, Gutcke T, Spronck JFP, Fischer DA, Szymkowiak A. Investigating spectrograph design parameters with the Yale Doppler diagnostic facility. In McLean IS, Ramsay SK, Takami H, editors, Ground-Based and Airborne Instrumentation for Astronomy IV. Vol. 8446. Bellingham, WA: SPIE. 2012. p. 1-10. 844695 https://doi.org/10.1117/12.926357