Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: Current performance and results

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

doi:10.1117/12.857196

Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: Current performance and results

Philip S. Muirhead, Jerry Edelstein, Jason T. 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 proceeding › Conference contribution

1 Scopus citations

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 language	English (US)
Title of host publication	Ground-Based and Airborne Instrumentation for Astronomy III
Edition	PART 1
DOIs	https://doi.org/10.1117/12.857196
State	Published - 2010
Event	Ground-Based and Airborne Instrumentation for Astronomy III - San Diego, CA, United States Duration: Jun 27 2010 → Jul 2 2010

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Number	PART 1
Volume	7735
ISSN (Print)	0277-786X

Other

Other	Ground-Based and Airborne Instrumentation for Astronomy III
Country/Territory	United States
City	San Diego, CA
Period	6/27/10 → 7/2/10

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1117/12.857196

Cite this

Muirhead, P. S., Edelstein, J., Wright, J. T., Erskine, D. J., Muterspaugh, M. W., Covey, K. R., Marckwordt, M. R., Halverson, S., Mondo, D., & 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.). Article 77357X (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7735, No. PART 1). https://doi.org/10.1117/12.857196

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title = "Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: Current performance and results",

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.",

author = "Muirhead, {Philip S.} and Jerry Edelstein and Wright, {Jason T.} and Erskine, {David J.} and Muterspaugh, {Matthew W.} and Covey, {Kevin R.} and Marckwordt, {Mario R.} and Samuel Halverson and Daniel Mondo and Lloyd, {James P.}",

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series = "Proceedings of SPIE - The International Society for Optical Engineering",

number = "PART 1",

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Muirhead, PS, Edelstein, J, Wright, JT, 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 T. et al.
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 proceeding › Conference contribution

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AU - Muirhead, Philip S.

AU - Edelstein, Jerry

AU - Wright, Jason T.

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

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AB - 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 JT, 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). doi: 10.1117/12.857196

Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: Current performance and results

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