Fiber scrambling for precise radial velocities at Lick and Keck observatories

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

doi:10.1117/12.926289

Fiber scrambling for precise radial velocities at Lick and Keck observatories

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

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

11 Citations (Scopus)

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.

Original language	English
Title of host publication	Ground-Based and Airborne Instrumentation for Astronomy IV
Editors	Ian S. McLean, Suzanne K. Ramsay, Hideki Takami
Place of Publication	Bellingham, WA
Publisher	SPIE
Pages	1-7
Number of pages	7
Volume	8446
ISBN (Print)	9780819491473
DOIs	https://doi.org/10.1117/12.926289
Publication status	Published - 2012
Externally published	Yes
Event	Ground-Based and Airborne Instrumentation for Astronomy IV - Amsterdam, Netherlands Duration: 1 Jul 2012 → 6 Jul 2012

Other

Other	Ground-Based and Airborne Instrumentation for Astronomy IV
Country/Territory	Netherlands
City	Amsterdam
Period	1/07/12 → 6/07/12

Keywords

Astronomical optics
Exoplanet detection
Optical fibers
Radial velocity

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10.1117/12.926289

Cite this

@inproceedings{891c2ed0e6334b719448049939b29ba6,

title = "Fiber scrambling for precise radial velocities at Lick and Keck observatories",

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.",

keywords = "Astronomical optics, Exoplanet detection, Optical fibers, Radial velocity",

author = "Spronck, {J. F P} and Fischer, {D. A.} and Kaplan, {Z. A.} and C. Schwab",

year = "2012",

doi = "10.1117/12.926289",

language = "English",

isbn = "9780819491473",

volume = "8446",

pages = "1--7",

editor = "McLean, {Ian S.} and Ramsay, {Suzanne K.} and Hideki Takami",

booktitle = "Ground-Based and Airborne Instrumentation for Astronomy IV",

publisher = "SPIE",

address = "United States",

note = "Ground-Based and Airborne Instrumentation for Astronomy IV ; Conference date: 01-07-2012 Through 06-07-2012",

}

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. et al.
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 proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - Fiber scrambling for precise radial velocities at Lick and Keck observatories

AU - Spronck, J. F P

AU - Fischer, D. A.

AU - Kaplan, Z. A.

AU - Schwab, C.

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

KW - Astronomical optics

KW - Exoplanet detection

KW - Optical fibers

KW - Radial velocity

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BT - Ground-Based and Airborne Instrumentation for Astronomy IV

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T2 - Ground-Based and Airborne Instrumentation for Astronomy IV

Y2 - 1 July 2012 through 6 July 2012

ER -

Fiber scrambling for precise radial velocities at Lick and Keck observatories

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