ILocater: A diffraction-limited Doppler spectrometer for the Large Binocular Telescope

Justin R. Crepp; Jonathan Crass; David King; Andrew Bechter; Eric Bechter; Ryan Ketterer; Robert Reynolds; Philip Hinz; Derek Kopon; David Cavalieri; Louis Fantano; Corina Koca; Eleanya Onuma; Karl Stapelfeldt; Joseph Thomes; Sheila Wall; Steven Macenka; James McGuire; Ronald Korniski; Leonard Zugby; Joshua Eisner; B. S. Gaudi; Fred Hearty; Kaitlin Kratter; Marc Kuchner; Giusi Micela; Matthew Nelson; Isabella Pagano; Andreas Quirrenbach; Christian Schwab; Michael Skrutskie; Alessandro Sozzetti; Charles Woodward; Bo Zhao

doi:10.1117/12.2233135

ILocater

A diffraction-limited Doppler spectrometer for the Large Binocular Telescope

Justin R. Crepp, Jonathan Crass, David King, Andrew Bechter, Eric Bechter, Ryan Ketterer, Robert Reynolds, Philip Hinz, Derek Kopon, David Cavalieri, Louis Fantano, Corina Koca, Eleanya Onuma, Karl Stapelfeldt, Joseph Thomes, Sheila Wall, Steven Macenka, James McGuire, Ronald Korniski, Leonard Zugby & 14 others Joshua Eisner, B. S. Gaudi, Fred Hearty, Kaitlin Kratter, Marc Kuchner, Giusi Micela, Matthew Nelson, Isabella Pagano, Andreas Quirrenbach, Christian Schwab, Michael Skrutskie, Alessandro Sozzetti, Charles Woodward, Bo Zhao

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

31 Citations (Scopus)

Abstract

We are developing a stable and precise spectrograph for the Large Binocular Telescope (LBT) named "iLocater." The instrument comprises three principal components: a cross-dispersed echelle spectrograph that operates in the YJ-bands (0.97-1.30 μm), a fiber-injection acquisition camera system, and a wavelength calibration unit. iLocater will deliver high spectral resolution (R∼150,000-240,000) measurements that permit novel studies of stellar and substellar objects in the solar neighborhood including extrasolar planets. Unlike previous planet-finding instruments, which are seeing-limited, iLocater operates at the diffraction limit and uses single mode fibers to eliminate the effects of modal noise entirely. By receiving starlight from two 8.4m diameter telescopes that each use "extreme" adaptive optics (AO), iLocater shows promise to overcome the limitations that prevent existing instruments from generating sub-meter-per-second radial velocity (RV) precision. Although optimized for the characterization of low-mass planets using the Doppler technique, iLocater will also advance areas of research that involve crowded fields, line-blanketing, and weak absorption lines.

Original language	English
Title of host publication	Ground-Based and Airborne Instrumentation for Astronomy VI
Editors	Christopher J. Evans, Luc Simard, Hideki Takami
Place of Publication	Washington, US
Publisher	SPIE
Pages	1-13
Number of pages	13
ISBN (Electronic)	9781510601956
DOIs	https://doi.org/10.1117/12.2233135
Publication status	Published - 2016
Event	Ground-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom Duration: 26 Jun 2016 → 30 Jun 2016

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	9908
ISSN (Print)	0277-786X

Other

Other	Ground-Based and Airborne Instrumentation for Astronomy VI
Country	United Kingdom
City	Edinburgh
Period	26/06/16 → 30/06/16

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Keywords

Adaptive optics
Exoplanets
Optical fibers
Radial velocity
Spectroscopy

Cite this

Crepp, J. R., Crass, J., King, D., Bechter, A., Bechter, E., Ketterer, R., ... Zhao, B. (2016). ILocater: A diffraction-limited Doppler spectrometer for the Large Binocular Telescope. In C. J. Evans, L. Simard, & H. Takami (Eds.), Ground-Based and Airborne Instrumentation for Astronomy VI (pp. 1-13). [990819] (Proceedings of SPIE; Vol. 9908). Washington, US: SPIE. https://doi.org/10.1117/12.2233135

Crepp, Justin R. ; Crass, Jonathan ; King, David ; Bechter, Andrew ; Bechter, Eric ; Ketterer, Ryan ; Reynolds, Robert ; Hinz, Philip ; Kopon, Derek ; Cavalieri, David ; Fantano, Louis ; Koca, Corina ; Onuma, Eleanya ; Stapelfeldt, Karl ; Thomes, Joseph ; Wall, Sheila ; Macenka, Steven ; McGuire, James ; Korniski, Ronald ; Zugby, Leonard ; Eisner, Joshua ; Gaudi, B. S. ; Hearty, Fred ; Kratter, Kaitlin ; Kuchner, Marc ; Micela, Giusi ; Nelson, Matthew ; Pagano, Isabella ; Quirrenbach, Andreas ; Schwab, Christian ; Skrutskie, Michael ; Sozzetti, Alessandro ; Woodward, Charles ; Zhao, Bo. / ILocater : A diffraction-limited Doppler spectrometer for the Large Binocular Telescope. Ground-Based and Airborne Instrumentation for Astronomy VI. editor / Christopher J. Evans ; Luc Simard ; Hideki Takami. Washington, US : SPIE, 2016. pp. 1-13 (Proceedings of SPIE).

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abstract = "We are developing a stable and precise spectrograph for the Large Binocular Telescope (LBT) named {"}iLocater.{"} The instrument comprises three principal components: a cross-dispersed echelle spectrograph that operates in the YJ-bands (0.97-1.30 μm), a fiber-injection acquisition camera system, and a wavelength calibration unit. iLocater will deliver high spectral resolution (R∼150,000-240,000) measurements that permit novel studies of stellar and substellar objects in the solar neighborhood including extrasolar planets. Unlike previous planet-finding instruments, which are seeing-limited, iLocater operates at the diffraction limit and uses single mode fibers to eliminate the effects of modal noise entirely. By receiving starlight from two 8.4m diameter telescopes that each use {"}extreme{"} adaptive optics (AO), iLocater shows promise to overcome the limitations that prevent existing instruments from generating sub-meter-per-second radial velocity (RV) precision. Although optimized for the characterization of low-mass planets using the Doppler technique, iLocater will also advance areas of research that involve crowded fields, line-blanketing, and weak absorption lines.",

keywords = "Adaptive optics, Exoplanets, Optical fibers, Radial velocity, Spectroscopy",

author = "Crepp, {Justin R.} and Jonathan Crass and David King and Andrew Bechter and Eric Bechter and Ryan Ketterer and Robert Reynolds and Philip Hinz and Derek Kopon and David Cavalieri and Louis Fantano and Corina Koca and Eleanya Onuma and Karl Stapelfeldt and Joseph Thomes and Sheila Wall and Steven Macenka and James McGuire and Ronald Korniski and Leonard Zugby and Joshua Eisner and Gaudi, {B. S.} and Fred Hearty and Kaitlin Kratter and Marc Kuchner and Giusi Micela and Matthew Nelson and Isabella Pagano and Andreas Quirrenbach and Christian Schwab and Michael Skrutskie and Alessandro Sozzetti and Charles Woodward and Bo Zhao",

year = "2016",

doi = "10.1117/12.2233135",

language = "English",

series = "Proceedings of SPIE",

publisher = "SPIE",

pages = "1--13",

editor = "Evans, {Christopher J.} and Luc Simard and Hideki Takami",

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Crepp, JR, Crass, J, King, D, Bechter, A, Bechter, E, Ketterer, R, Reynolds, R, Hinz, P, Kopon, D, Cavalieri, D, Fantano, L, Koca, C, Onuma, E, Stapelfeldt, K, Thomes, J, Wall, S, Macenka, S, McGuire, J, Korniski, R, Zugby, L, Eisner, J, Gaudi, BS, Hearty, F, Kratter, K, Kuchner, M, Micela, G, Nelson, M, Pagano, I, Quirrenbach, A, Schwab, C, Skrutskie, M, Sozzetti, A, Woodward, C & Zhao, B 2016, ILocater: A diffraction-limited Doppler spectrometer for the Large Binocular Telescope. in CJ Evans, L Simard & H Takami (eds), Ground-Based and Airborne Instrumentation for Astronomy VI., 990819, Proceedings of SPIE, vol. 9908, SPIE, Washington, US, pp. 1-13, Ground-Based and Airborne Instrumentation for Astronomy VI, Edinburgh, United Kingdom, 26/06/16. https://doi.org/10.1117/12.2233135

ILocater : A diffraction-limited Doppler spectrometer for the Large Binocular Telescope. / Crepp, Justin R.; Crass, Jonathan; King, David; Bechter, Andrew; Bechter, Eric; Ketterer, Ryan; Reynolds, Robert; Hinz, Philip; Kopon, Derek; Cavalieri, David; Fantano, Louis; Koca, Corina; Onuma, Eleanya; Stapelfeldt, Karl; Thomes, Joseph; Wall, Sheila; Macenka, Steven; McGuire, James; Korniski, Ronald; Zugby, Leonard; Eisner, Joshua; Gaudi, B. S.; Hearty, Fred; Kratter, Kaitlin; Kuchner, Marc; Micela, Giusi; Nelson, Matthew; Pagano, Isabella; Quirrenbach, Andreas; Schwab, Christian; Skrutskie, Michael; Sozzetti, Alessandro; Woodward, Charles; Zhao, Bo.

Ground-Based and Airborne Instrumentation for Astronomy VI. ed. / Christopher J. Evans; Luc Simard; Hideki Takami. Washington, US : SPIE, 2016. p. 1-13 990819 (Proceedings of SPIE; Vol. 9908).

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

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KW - Adaptive optics

KW - Exoplanets

KW - Optical fibers

KW - Radial velocity

KW - Spectroscopy

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M3 - Conference proceeding contribution

T3 - Proceedings of SPIE

SP - 1

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BT - Ground-Based and Airborne Instrumentation for Astronomy VI

A2 - Evans, Christopher J.

A2 - Simard, Luc

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PB - SPIE

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10.1117/12.2233135

Link to publication in Scopus