Design of the CHIRON high-resolution spectrometer at CTIO

Christian Schwab, Julien F P Spronck, Andrei Tokovinin, Debra A. Fischer

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

Abstract

Small telescopes coupled to high resolution spectrometers are powerful tools for Doppler planet searches. They allow for high cadence observations and flexible scheduling; yet there are few such facilities. We present an innovative and inexpensive design for CHIRON, a high resolution (R∼80.000) Echelle spectrometer for the 1.5m telescope at CTIO. Performance and throughput are very good, over the whole spectral range from 410 to 870nm, with a peak efficiency of 15% in the iodine absorption region. The spectrograph will be fibre-fed, and use an iodine cell for wavelength calibration. An image slicer permits a moderate beam size. We use commercially available, high performance optical components, which is key for quick and efficient implementation. We discuss the optical design, opto-mechanical tolerances and resulting image quality.

LanguageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy III
EditorsIan S. McLean, Suzanne K. Ramsay, Hideki Takami
Place of PublicationWashington, DC
PublisherSPIE
Pages1-7
Number of pages7
Volume7735
EditionPART 1
ISBN (Print)9780819482259
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventGround-Based and Airborne Instrumentation for Astronomy III - San Diego, CA, United States
Duration: 27 Jun 20102 Jul 2010

Other

OtherGround-Based and Airborne Instrumentation for Astronomy III
CountryUnited States
CitySan Diego, CA
Period27/06/102/07/10

Fingerprint

Iodine
Spectrometer
Telescopes
iodine
Telescope
Spectrometers
High Resolution
telescopes
spectrometers
Echelle
Spectrographs
Optical design
high resolution
Optical Design
scheduling
Spectrograph
Planets
Doppler
Efficient Implementation
Slice

Keywords

  • Echelle
  • high resolution spectrograph
  • Iodine cell technique
  • Spectrometer design

Cite this

Schwab, C., Spronck, J. F. P., Tokovinin, A., & Fischer, D. A. (2010). Design of the CHIRON high-resolution spectrometer at CTIO. In I. S. McLean, S. K. Ramsay, & H. Takami (Eds.), Ground-Based and Airborne Instrumentation for Astronomy III (PART 1 ed., Vol. 7735, pp. 1-7). [77354G] Washington, DC: SPIE. https://doi.org/10.1117/12.856709
Schwab, Christian ; Spronck, Julien F P ; Tokovinin, Andrei ; Fischer, Debra A. / Design of the CHIRON high-resolution spectrometer at CTIO. Ground-Based and Airborne Instrumentation for Astronomy III. editor / Ian S. McLean ; Suzanne K. Ramsay ; Hideki Takami. Vol. 7735 PART 1. ed. Washington, DC : SPIE, 2010. pp. 1-7
@inproceedings{de17d4de298b47e490da2823ee9da8ae,
title = "Design of the CHIRON high-resolution spectrometer at CTIO",
abstract = "Small telescopes coupled to high resolution spectrometers are powerful tools for Doppler planet searches. They allow for high cadence observations and flexible scheduling; yet there are few such facilities. We present an innovative and inexpensive design for CHIRON, a high resolution (R∼80.000) Echelle spectrometer for the 1.5m telescope at CTIO. Performance and throughput are very good, over the whole spectral range from 410 to 870nm, with a peak efficiency of 15{\%} in the iodine absorption region. The spectrograph will be fibre-fed, and use an iodine cell for wavelength calibration. An image slicer permits a moderate beam size. We use commercially available, high performance optical components, which is key for quick and efficient implementation. We discuss the optical design, opto-mechanical tolerances and resulting image quality.",
keywords = "Echelle, high resolution spectrograph, Iodine cell technique, Spectrometer design",
author = "Christian Schwab and Spronck, {Julien F P} and Andrei Tokovinin and Fischer, {Debra A.}",
year = "2010",
doi = "10.1117/12.856709",
language = "English",
isbn = "9780819482259",
volume = "7735",
pages = "1--7",
editor = "McLean, {Ian S.} and Ramsay, {Suzanne K.} and Hideki Takami",
booktitle = "Ground-Based and Airborne Instrumentation for Astronomy III",
publisher = "SPIE",
address = "United States",
edition = "PART 1",

}

Schwab, C, Spronck, JFP, Tokovinin, A & Fischer, DA 2010, Design of the CHIRON high-resolution spectrometer at CTIO. in IS McLean, SK Ramsay & H Takami (eds), Ground-Based and Airborne Instrumentation for Astronomy III. PART 1 edn, vol. 7735, 77354G, SPIE, Washington, DC, pp. 1-7, Ground-Based and Airborne Instrumentation for Astronomy III, San Diego, CA, United States, 27/06/10. https://doi.org/10.1117/12.856709

Design of the CHIRON high-resolution spectrometer at CTIO. / Schwab, Christian; Spronck, Julien F P; Tokovinin, Andrei; Fischer, Debra A.

Ground-Based and Airborne Instrumentation for Astronomy III. ed. / Ian S. McLean; Suzanne K. Ramsay; Hideki Takami. Vol. 7735 PART 1. ed. Washington, DC : SPIE, 2010. p. 1-7 77354G.

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

TY - GEN

T1 - Design of the CHIRON high-resolution spectrometer at CTIO

AU - Schwab, Christian

AU - Spronck, Julien F P

AU - Tokovinin, Andrei

AU - Fischer, Debra A.

PY - 2010

Y1 - 2010

N2 - Small telescopes coupled to high resolution spectrometers are powerful tools for Doppler planet searches. They allow for high cadence observations and flexible scheduling; yet there are few such facilities. We present an innovative and inexpensive design for CHIRON, a high resolution (R∼80.000) Echelle spectrometer for the 1.5m telescope at CTIO. Performance and throughput are very good, over the whole spectral range from 410 to 870nm, with a peak efficiency of 15% in the iodine absorption region. The spectrograph will be fibre-fed, and use an iodine cell for wavelength calibration. An image slicer permits a moderate beam size. We use commercially available, high performance optical components, which is key for quick and efficient implementation. We discuss the optical design, opto-mechanical tolerances and resulting image quality.

AB - Small telescopes coupled to high resolution spectrometers are powerful tools for Doppler planet searches. They allow for high cadence observations and flexible scheduling; yet there are few such facilities. We present an innovative and inexpensive design for CHIRON, a high resolution (R∼80.000) Echelle spectrometer for the 1.5m telescope at CTIO. Performance and throughput are very good, over the whole spectral range from 410 to 870nm, with a peak efficiency of 15% in the iodine absorption region. The spectrograph will be fibre-fed, and use an iodine cell for wavelength calibration. An image slicer permits a moderate beam size. We use commercially available, high performance optical components, which is key for quick and efficient implementation. We discuss the optical design, opto-mechanical tolerances and resulting image quality.

KW - Echelle

KW - high resolution spectrograph

KW - Iodine cell technique

KW - Spectrometer design

UR - http://www.scopus.com/inward/record.url?scp=78149273228&partnerID=8YFLogxK

U2 - 10.1117/12.856709

DO - 10.1117/12.856709

M3 - Conference proceeding contribution

SN - 9780819482259

VL - 7735

SP - 1

EP - 7

BT - Ground-Based and Airborne Instrumentation for Astronomy III

A2 - McLean, Ian S.

A2 - Ramsay, Suzanne K.

A2 - Takami, Hideki

PB - SPIE

CY - Washington, DC

ER -

Schwab C, Spronck JFP, Tokovinin A, Fischer DA. Design of the CHIRON high-resolution spectrometer at CTIO. In McLean IS, Ramsay SK, Takami H, editors, Ground-Based and Airborne Instrumentation for Astronomy III. PART 1 ed. Vol. 7735. Washington, DC: SPIE. 2010. p. 1-7. 77354G https://doi.org/10.1117/12.856709