Stellar spectroscopy in the near-infrared with a laser frequency comb

Andrew J. Metcalf, Tyler Anderson, Chad F. Bender, Scott Blakeslee, Wesley Brand, David R. Carlson, William D. Cochran, Scott A. Diddams, Michael Endl, Connor Fredrick, Sam Halverson, Daniel D. Hickstein, Fred Hearty, Jeff Jennings, Shubham Kanodia, Kyle F. Kaplan, Eric Levi, Emily Lubar, Suvrath Mahadevan, Andrew Monson & 17 others Joe P. Ninan, Colin Nitroy, Steve Osterman, Scott B. Papp, Franklyn Quinlan, Larry Ramsey, Paul Robertson, Arpita Roy, Christian Schwab, Steinn Sigurdsson, Kartik Srinivasan, Gudmundur Stefansson, David A. Sterner, Ryan Terrien, Alex Wolszczan, Jason T. Wright, Gabriel Ycas

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The discovery and characterization of exoplanets around nearby stars are driven by profound scientific questions about the uniqueness of Earth and our solar system, and the conditions under which life could exist elsewhere in our galaxy. Doppler spectroscopy, or the radial velocity (RV) technique, has been used extensively to identify hundreds of exoplanets, but with notable challenges in detecting terrestrial mass planets orbiting within habitable zones. We describe infrared RV spectroscopy at the 10 m Hobby-Eberly Telescope that leverages a 30 GHz electro-optic laser frequency comb with a nanophotonic supercontinuum to calibrate the Habitable Zone Planet Finder spectrograph. Demonstrated instrument precision <10 cm/s and stellar RVs approaching 1 m/s open the path to discovery and confirmation of habitable-zone planets around M-dwarfs, the most ubiquitous type of stars in our galaxy.

LanguageEnglish
Pages233-239
Number of pages7
JournalOptica
Volume6
Issue number2
DOIs
Publication statusPublished - 20 Feb 2019

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Planets
planets
Galaxies
Spectroscopy
extrasolar planets
Infrared radiation
radial velocity
Stars
Lasers
spectroscopy
galaxies
lasers
Nanophotonics
stars
Spectrographs
Solar system
uniqueness
Electrooptical effects
Telescopes
solar system

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Metcalf, A. J., Anderson, T., Bender, C. F., Blakeslee, S., Brand, W., Carlson, D. R., ... Ycas, G. (2019). Stellar spectroscopy in the near-infrared with a laser frequency comb. Optica, 6(2), 233-239. https://doi.org/10.1364/OPTICA.6.000233
Metcalf, Andrew J. ; Anderson, Tyler ; Bender, Chad F. ; Blakeslee, Scott ; Brand, Wesley ; Carlson, David R. ; Cochran, William D. ; Diddams, Scott A. ; Endl, Michael ; Fredrick, Connor ; Halverson, Sam ; Hickstein, Daniel D. ; Hearty, Fred ; Jennings, Jeff ; Kanodia, Shubham ; Kaplan, Kyle F. ; Levi, Eric ; Lubar, Emily ; Mahadevan, Suvrath ; Monson, Andrew ; Ninan, Joe P. ; Nitroy, Colin ; Osterman, Steve ; Papp, Scott B. ; Quinlan, Franklyn ; Ramsey, Larry ; Robertson, Paul ; Roy, Arpita ; Schwab, Christian ; Sigurdsson, Steinn ; Srinivasan, Kartik ; Stefansson, Gudmundur ; Sterner, David A. ; Terrien, Ryan ; Wolszczan, Alex ; Wright, Jason T. ; Ycas, Gabriel. / Stellar spectroscopy in the near-infrared with a laser frequency comb. In: Optica. 2019 ; Vol. 6, No. 2. pp. 233-239.
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abstract = "The discovery and characterization of exoplanets around nearby stars are driven by profound scientific questions about the uniqueness of Earth and our solar system, and the conditions under which life could exist elsewhere in our galaxy. Doppler spectroscopy, or the radial velocity (RV) technique, has been used extensively to identify hundreds of exoplanets, but with notable challenges in detecting terrestrial mass planets orbiting within habitable zones. We describe infrared RV spectroscopy at the 10 m Hobby-Eberly Telescope that leverages a 30 GHz electro-optic laser frequency comb with a nanophotonic supercontinuum to calibrate the Habitable Zone Planet Finder spectrograph. Demonstrated instrument precision <10 cm/s and stellar RVs approaching 1 m/s open the path to discovery and confirmation of habitable-zone planets around M-dwarfs, the most ubiquitous type of stars in our galaxy.",
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Metcalf, AJ, Anderson, T, Bender, CF, Blakeslee, S, Brand, W, Carlson, DR, Cochran, WD, Diddams, SA, Endl, M, Fredrick, C, Halverson, S, Hickstein, DD, Hearty, F, Jennings, J, Kanodia, S, Kaplan, KF, Levi, E, Lubar, E, Mahadevan, S, Monson, A, Ninan, JP, Nitroy, C, Osterman, S, Papp, SB, Quinlan, F, Ramsey, L, Robertson, P, Roy, A, Schwab, C, Sigurdsson, S, Srinivasan, K, Stefansson, G, Sterner, DA, Terrien, R, Wolszczan, A, Wright, JT & Ycas, G 2019, 'Stellar spectroscopy in the near-infrared with a laser frequency comb' Optica, vol. 6, no. 2, pp. 233-239. https://doi.org/10.1364/OPTICA.6.000233

Stellar spectroscopy in the near-infrared with a laser frequency comb. / Metcalf, Andrew J.; Anderson, Tyler; Bender, Chad F.; Blakeslee, Scott; Brand, Wesley; Carlson, David R.; Cochran, William D.; Diddams, Scott A.; Endl, Michael; Fredrick, Connor; Halverson, Sam; Hickstein, Daniel D.; Hearty, Fred; Jennings, Jeff; Kanodia, Shubham; Kaplan, Kyle F.; Levi, Eric; Lubar, Emily; Mahadevan, Suvrath; Monson, Andrew; Ninan, Joe P.; Nitroy, Colin; Osterman, Steve; Papp, Scott B.; Quinlan, Franklyn; Ramsey, Larry; Robertson, Paul; Roy, Arpita; Schwab, Christian; Sigurdsson, Steinn; Srinivasan, Kartik; Stefansson, Gudmundur; Sterner, David A.; Terrien, Ryan; Wolszczan, Alex; Wright, Jason T.; Ycas, Gabriel.

In: Optica, Vol. 6, No. 2, 20.02.2019, p. 233-239.

Research output: Contribution to journalArticleResearchpeer-review

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Metcalf AJ, Anderson T, Bender CF, Blakeslee S, Brand W, Carlson DR et al. Stellar spectroscopy in the near-infrared with a laser frequency comb. Optica. 2019 Feb 20;6(2):233-239. https://doi.org/10.1364/OPTICA.6.000233