Fiber scrambling for precise radial velocities at Lick and Keck observatories

J. F P Spronck, D. A. Fischer, Z. A. Kaplan, C. Schwab

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

Abstract

The detection of Earth analogs with radial velocity requires extreme Doppler precision and long term stability. Variations in the illumination of the slit and of the spectrograph optics occur on time scales of seconds and minutes, primarily because of guiding, seeing and focusing. These variations yield differences in the instrumental profile (IP). In order to stabilize the IP, we designed a fiber feed for the Hamilton spectrograph at Lick and for HIRES at Keck. Here, we report all results obtained with these fiber scramblers. We also present the design of a new double scrambler/pupil slicer for HIRES at Keck.

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
Pages1-7
Number of pages7
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

Radial velocity
Spectrographs
Spectrograph
Observatories
Observatory
radial velocity
spectrographs
observatories
Earth analogs
Fiber
fibers
Fibers
pupils
profiles
Doppler
Slice
slits
Optics
Illumination
Time Scales

Keywords

  • Astronomical optics
  • Exoplanet detection
  • Optical fibers
  • Radial velocity

Cite this

Spronck, J. F. P., Fischer, D. A., Kaplan, Z. A., & Schwab, C. (2012). Fiber scrambling for precise radial velocities at Lick and Keck observatories. In I. S. McLean, S. K. Ramsay, & H. Takami (Eds.), Ground-Based and Airborne Instrumentation for Astronomy IV (Vol. 8446, pp. 1-7). [84468Z] Bellingham, WA: SPIE. https://doi.org/10.1117/12.926289
Spronck, J. F P ; Fischer, D. A. ; Kaplan, Z. A. ; Schwab, C. / Fiber scrambling for precise radial velocities at Lick and Keck observatories. Ground-Based and Airborne Instrumentation for Astronomy IV. editor / Ian S. McLean ; Suzanne K. Ramsay ; Hideki Takami. Vol. 8446 Bellingham, WA : SPIE, 2012. pp. 1-7
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Spronck, JFP, Fischer, DA, Kaplan, ZA & Schwab, C 2012, Fiber scrambling for precise radial velocities at Lick and Keck observatories. in IS McLean, SK Ramsay & H Takami (eds), Ground-Based and Airborne Instrumentation for Astronomy IV. vol. 8446, 84468Z, SPIE, Bellingham, WA, pp. 1-7, Ground-Based and Airborne Instrumentation for Astronomy IV, Amsterdam, Netherlands, 1/07/12. https://doi.org/10.1117/12.926289

Fiber scrambling for precise radial velocities at Lick and Keck observatories. / Spronck, J. F P; Fischer, D. A.; Kaplan, Z. A.; Schwab, C.

Ground-Based and Airborne Instrumentation for Astronomy IV. ed. / Ian S. McLean; Suzanne K. Ramsay; Hideki Takami. Vol. 8446 Bellingham, WA : SPIE, 2012. p. 1-7 84468Z.

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

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Spronck JFP, Fischer DA, Kaplan ZA, Schwab C. Fiber scrambling for precise radial velocities at Lick and Keck observatories. In McLean IS, Ramsay SK, Takami H, editors, Ground-Based and Airborne Instrumentation for Astronomy IV. Vol. 8446. Bellingham, WA: SPIE. 2012. p. 1-7. 84468Z https://doi.org/10.1117/12.926289