Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument

Current performance and results

Philip S. Muirhead, Jerry Edelstein, Jason Wright, David J. Erskine, Matthew W. Muterspaugh, Kevin R. Covey, Mario R. Marckwordt, Samuel Halverson, Daniel Mondo, James P. Lloyd

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The TripleSpec Exoplanet Discovery Instrument (TEDI) is optimized to detect extrasolar planets orbiting midto- late M dwarfs using the Doppler technique at infrared wavelengths. TEDI is the combination of a Michelson interferometer and a moderate-resolution near-infrared spectrograph, TripleSpec, mounted on the Cassegrain focus of the Palomar 200-inch Hale Telescope. Here we present results from observations of a radial velocity standard star and a laboratory source over the past year. Our results indicate that focus effects within the interferometer, combined with non-common-path errors between the ThAr calibration source and starlight, limit our performance to several 100 m/s. An upgraded version of TEDI, TEDI 2.0, will eliminate this behavior by mixing ThAr with starlight in a scrambled fiber before a redesigned interferometer with minimal focal effects.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy III
EditionPART 1
DOIs
StatePublished - Nov 12 2010
EventGround-Based and Airborne Instrumentation for Astronomy III - San Diego, CA, United States
Duration: Jun 27 2010Jul 2 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
NumberPART 1
Volume7735
ISSN (Print)0277-786X

Other

OtherGround-Based and Airborne Instrumentation for Astronomy III
CountryUnited States
CitySan Diego, CA
Period6/27/107/2/10

Fingerprint

Exoplanets
extrasolar planets
Velocity measurement
Infrared
Infrared radiation
Interferometer
Interferometers
Infrared spectrographs
Extrasolar planets
Extrasolar Planets
Michelson Interferometer
Radial velocity
Michelson interferometers
interferometers
Spectrograph
Doppler
Telescopes
Stars
Telescope
Star

All Science Journal Classification (ASJC) codes

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Muirhead, P. S., Edelstein, J., Wright, J., Erskine, D. J., Muterspaugh, M. W., Covey, K. R., ... Lloyd, J. P. (2010). Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: Current performance and results. In Ground-Based and Airborne Instrumentation for Astronomy III (PART 1 ed.). [77357X] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7735, No. PART 1). https://doi.org/10.1117/12.857196
Muirhead, Philip S. ; Edelstein, Jerry ; Wright, Jason ; Erskine, David J. ; Muterspaugh, Matthew W. ; Covey, Kevin R. ; Marckwordt, Mario R. ; Halverson, Samuel ; Mondo, Daniel ; Lloyd, James P. / Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument : Current performance and results. Ground-Based and Airborne Instrumentation for Astronomy III. PART 1. ed. 2010. (Proceedings of SPIE - The International Society for Optical Engineering; PART 1).
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abstract = "The TripleSpec Exoplanet Discovery Instrument (TEDI) is optimized to detect extrasolar planets orbiting midto- late M dwarfs using the Doppler technique at infrared wavelengths. TEDI is the combination of a Michelson interferometer and a moderate-resolution near-infrared spectrograph, TripleSpec, mounted on the Cassegrain focus of the Palomar 200-inch Hale Telescope. Here we present results from observations of a radial velocity standard star and a laboratory source over the past year. Our results indicate that focus effects within the interferometer, combined with non-common-path errors between the ThAr calibration source and starlight, limit our performance to several 100 m/s. An upgraded version of TEDI, TEDI 2.0, will eliminate this behavior by mixing ThAr with starlight in a scrambled fiber before a redesigned interferometer with minimal focal effects.",
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Muirhead, PS, Edelstein, J, Wright, J, Erskine, DJ, Muterspaugh, MW, Covey, KR, Marckwordt, MR, Halverson, S, Mondo, D & Lloyd, JP 2010, Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: Current performance and results. in Ground-Based and Airborne Instrumentation for Astronomy III. PART 1 edn, 77357X, Proceedings of SPIE - The International Society for Optical Engineering, no. PART 1, vol. 7735, Ground-Based and Airborne Instrumentation for Astronomy III, San Diego, CA, United States, 6/27/10. https://doi.org/10.1117/12.857196

Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument : Current performance and results. / Muirhead, Philip S.; Edelstein, Jerry; Wright, Jason; Erskine, David J.; Muterspaugh, Matthew W.; Covey, Kevin R.; Marckwordt, Mario R.; Halverson, Samuel; Mondo, Daniel; Lloyd, James P.

Ground-Based and Airborne Instrumentation for Astronomy III. PART 1. ed. 2010. 77357X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7735, No. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T2 - Current performance and results

AU - Muirhead, Philip S.

AU - Edelstein, Jerry

AU - Wright, Jason

AU - Erskine, David J.

AU - Muterspaugh, Matthew W.

AU - Covey, Kevin R.

AU - Marckwordt, Mario R.

AU - Halverson, Samuel

AU - Mondo, Daniel

AU - Lloyd, James P.

PY - 2010/11/12

Y1 - 2010/11/12

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SN - 9780819482259

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BT - Ground-Based and Airborne Instrumentation for Astronomy III

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Muirhead PS, Edelstein J, Wright J, Erskine DJ, Muterspaugh MW, Covey KR et al. Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: Current performance and results. In Ground-Based and Airborne Instrumentation for Astronomy III. PART 1 ed. 2010. 77357X. (Proceedings of SPIE - The International Society for Optical Engineering; PART 1). https://doi.org/10.1117/12.857196