Precision near-infrared radial velocity instrumentation I: Absorption gas cells

Peter P. Plavchan; G. Anglada-Escude; R. White; P. Gao; C. Davison; S. Mills; C. Beichman; C. Brinkworth; J. Johnson; M. Bottom; D. Ciardi; K. Wallace; B. Mennesson; K. Von Braun; G. Vasisht; L. Prato; S. Kane; A. Tanner; B. Walp; S. Crawford; S. Lin

doi:10.1117/12.2023690

Precision near-infrared radial velocity instrumentation I: Absorption gas cells

Peter P. Plavchan, G. Anglada-Escude, R. White, P. Gao, C. Davison, S. Mills, C. Beichman, C. Brinkworth, J. Johnson, M. Bottom, D. Ciardi, K. Wallace, B. Mennesson, K. Von Braun, G. Vasisht, L. Prato, S. Kane, A. Tanner, B. Walp, S. CrawfordS. Lin

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

6 Scopus citations

Abstract

We have built and commissioned gas absorption cells for precision spectroscopic radial velocity measurements in the near-infrared in the H and K bands. We describe the construction and installation of three such cells filled with 13CH4, 12CH3D, and 14NH3 for the CSHELL spectrograph at the NASA Infrared Telescope Facility (IRTF). We have obtained their high-resolution laboratory Fourier Transform spectra, which can have other practical uses. We summarize the practical details involved in the construction of the three cells, and the thermal and mechanical control. In all cases, the construction of the cells is very affordable. We are carrying out a pilot survey with the 13CH4 methane gas cell on the CSHELL spectrograph at the IRTF to detect exoplanets around low mass and young stars. We discuss the current status of our survey, with the aim of photon-noise limited radial velocity precision. For adequately bright targets, we are able to probe a noise floor of 7 m/s with the gas cell with CSHELL at cassegrain focus. Our results demonstrate the feasibility of using a gas cell on the next generation of near-infrared spectrographs such as iSHELL on IRTF, iGRINS, and an upgraded NIRSPEC at Keck.

Original language	English
Title of host publication	Techniques and Instrumentation for Detection of Exoplanets VI
DOIs	https://doi.org/10.1117/12.2023690
State	Published - 2013
Externally published	Yes
Event	Techniques and Instrumentation for Detection of Exoplanets VI - San Diego, CA, United States Duration: Aug 26 2013 → Aug 29 2013

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8864
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Techniques and Instrumentation for Detection of Exoplanets VI
Country/Territory	United States
City	San Diego, CA
Period	08/26/13 → 08/29/13

Keywords

Exoplanets
Instrumentation
Near-infrared spectroscopy
Radial velocity surveys

Access to Document

10.1117/12.2023690

Cite this

Plavchan, P. P., Anglada-Escude, G., White, R., Gao, P., Davison, C., Mills, S., Beichman, C., Brinkworth, C., Johnson, J., Bottom, M., Ciardi, D., Wallace, K., Mennesson, B., Von Braun, K., Vasisht, G., Prato, L., Kane, S., Tanner, A., Walp, B., ... Lin, S. (2013). Precision near-infrared radial velocity instrumentation I: Absorption gas cells. In Techniques and Instrumentation for Detection of Exoplanets VI Article 88641J (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8864). https://doi.org/10.1117/12.2023690

@inproceedings{a032d8f5450a47cfb6b917e93361289b,

title = "Precision near-infrared radial velocity instrumentation I: Absorption gas cells",

abstract = "We have built and commissioned gas absorption cells for precision spectroscopic radial velocity measurements in the near-infrared in the H and K bands. We describe the construction and installation of three such cells filled with 13CH4, 12CH3D, and 14NH3 for the CSHELL spectrograph at the NASA Infrared Telescope Facility (IRTF). We have obtained their high-resolution laboratory Fourier Transform spectra, which can have other practical uses. We summarize the practical details involved in the construction of the three cells, and the thermal and mechanical control. In all cases, the construction of the cells is very affordable. We are carrying out a pilot survey with the 13CH4 methane gas cell on the CSHELL spectrograph at the IRTF to detect exoplanets around low mass and young stars. We discuss the current status of our survey, with the aim of photon-noise limited radial velocity precision. For adequately bright targets, we are able to probe a noise floor of 7 m/s with the gas cell with CSHELL at cassegrain focus. Our results demonstrate the feasibility of using a gas cell on the next generation of near-infrared spectrographs such as iSHELL on IRTF, iGRINS, and an upgraded NIRSPEC at Keck.",

keywords = "Exoplanets, Instrumentation, Near-infrared spectroscopy, Radial velocity surveys",

author = "Plavchan, \{Peter P.\} and G. Anglada-Escude and R. White and P. Gao and C. Davison and S. Mills and C. Beichman and C. Brinkworth and J. Johnson and M. Bottom and D. Ciardi and K. Wallace and B. Mennesson and \{Von Braun\}, K. and G. Vasisht and L. Prato and S. Kane and A. Tanner and B. Walp and S. Crawford and S. Lin",

year = "2013",

doi = "10.1117/12.2023690",

language = "English",

isbn = "9780819497147",

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

booktitle = "Techniques and Instrumentation for Detection of Exoplanets VI",

note = "Techniques and Instrumentation for Detection of Exoplanets VI ; Conference date: 26-08-2013 Through 29-08-2013",

}

Plavchan, PP, Anglada-Escude, G, White, R, Gao, P, Davison, C, Mills, S, Beichman, C, Brinkworth, C, Johnson, J, Bottom, M, Ciardi, D, Wallace, K, Mennesson, B, Von Braun, K, Vasisht, G, Prato, L, Kane, S, Tanner, A, Walp, B, Crawford, S & Lin, S 2013, Precision near-infrared radial velocity instrumentation I: Absorption gas cells. in Techniques and Instrumentation for Detection of Exoplanets VI., 88641J, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8864, Techniques and Instrumentation for Detection of Exoplanets VI, San Diego, CA, United States, 08/26/13. https://doi.org/10.1117/12.2023690

Precision near-infrared radial velocity instrumentation I: Absorption gas cells. / Plavchan, Peter P.; Anglada-Escude, G.; White, R. et al.
Techniques and Instrumentation for Detection of Exoplanets VI. 2013. 88641J (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8864).

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

TY - GEN

T1 - Precision near-infrared radial velocity instrumentation I

T2 - Techniques and Instrumentation for Detection of Exoplanets VI

AU - Plavchan, Peter P.

AU - Anglada-Escude, G.

AU - White, R.

AU - Gao, P.

AU - Davison, C.

AU - Mills, S.

AU - Beichman, C.

AU - Brinkworth, C.

AU - Johnson, J.

AU - Bottom, M.

AU - Ciardi, D.

AU - Wallace, K.

AU - Mennesson, B.

AU - Von Braun, K.

AU - Vasisht, G.

AU - Prato, L.

AU - Kane, S.

AU - Tanner, A.

AU - Walp, B.

AU - Crawford, S.

AU - Lin, S.

PY - 2013

Y1 - 2013

N2 - We have built and commissioned gas absorption cells for precision spectroscopic radial velocity measurements in the near-infrared in the H and K bands. We describe the construction and installation of three such cells filled with 13CH4, 12CH3D, and 14NH3 for the CSHELL spectrograph at the NASA Infrared Telescope Facility (IRTF). We have obtained their high-resolution laboratory Fourier Transform spectra, which can have other practical uses. We summarize the practical details involved in the construction of the three cells, and the thermal and mechanical control. In all cases, the construction of the cells is very affordable. We are carrying out a pilot survey with the 13CH4 methane gas cell on the CSHELL spectrograph at the IRTF to detect exoplanets around low mass and young stars. We discuss the current status of our survey, with the aim of photon-noise limited radial velocity precision. For adequately bright targets, we are able to probe a noise floor of 7 m/s with the gas cell with CSHELL at cassegrain focus. Our results demonstrate the feasibility of using a gas cell on the next generation of near-infrared spectrographs such as iSHELL on IRTF, iGRINS, and an upgraded NIRSPEC at Keck.

AB - We have built and commissioned gas absorption cells for precision spectroscopic radial velocity measurements in the near-infrared in the H and K bands. We describe the construction and installation of three such cells filled with 13CH4, 12CH3D, and 14NH3 for the CSHELL spectrograph at the NASA Infrared Telescope Facility (IRTF). We have obtained their high-resolution laboratory Fourier Transform spectra, which can have other practical uses. We summarize the practical details involved in the construction of the three cells, and the thermal and mechanical control. In all cases, the construction of the cells is very affordable. We are carrying out a pilot survey with the 13CH4 methane gas cell on the CSHELL spectrograph at the IRTF to detect exoplanets around low mass and young stars. We discuss the current status of our survey, with the aim of photon-noise limited radial velocity precision. For adequately bright targets, we are able to probe a noise floor of 7 m/s with the gas cell with CSHELL at cassegrain focus. Our results demonstrate the feasibility of using a gas cell on the next generation of near-infrared spectrographs such as iSHELL on IRTF, iGRINS, and an upgraded NIRSPEC at Keck.

KW - Exoplanets

KW - Instrumentation

KW - Near-infrared spectroscopy

KW - Radial velocity surveys

UR - https://www.scopus.com/pages/publications/84889062221

U2 - 10.1117/12.2023690

DO - 10.1117/12.2023690

M3 - Conference contribution

AN - SCOPUS:84889062221

SN - 9780819497147

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Techniques and Instrumentation for Detection of Exoplanets VI

Y2 - 26 August 2013 through 29 August 2013

ER -

Precision near-infrared radial velocity instrumentation I: Absorption gas cells

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Keywords

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