First light of the CHARIS high-contrast integral-field spectrograph

Tyler Groff; Jeffrey Chilcote; Timothy Brandt; N. Jeremy Kasdin; Michael Galvin; Craig Loomis; Maxime Rizzo; Gillian Knapp; Olivier Guyon; Nemanja Jovanovic; Julien Lozi; Thayne Currie; Naruhisa Takato; Masahiko Hayashi

doi:10.1117/12.2273525

First light of the CHARIS high-contrast integral-field spectrograph

Tyler Groff, Jeffrey Chilcote, Timothy Brandt, N. Jeremy Kasdin, Michael Galvin, Craig Loomis, Maxime Rizzo, Gillian Knapp, Olivier Guyon, Nemanja Jovanovic, Julien Lozi, Thayne Currie, Naruhisa Takato, Masahiko Hayashi

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

29 Scopus citations

Abstract

One of the leading direct Imaging techniques, particularly in ground-based imaging, uses a coronagraphic system and integral field spectrograph (IFS). The Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS) is an IFS that has been built for the Subaru telescope. CHARIS has been delivered to the observatory and now sits behind the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system. CHARIS has 'high' and 'low' resolution operating modes. The high-resolution mode is used to characterize targets in J, H, and K bands at R70. The low-resolution prism is meant for discovery and spans J+H+K bands (1.15-2.37 microns) with a spectral resolution of R18. This discovery mode has already proven better than 15-sigma detections of HR8799c,d,e when combining ADI+SDI. Using SDI alone, planets c and d have been detected in a single 24 second image. The CHARIS team is optimizing instrument performance and refining ADI+SDI recombination to maximize our contrast detection limit. In addition to the new observing modes, CHARIS has demonstrated a design with high robustness to spectral crosstalk. CHARIS has completed commissioning and is open for science observations.

Original language	English (US)
Title of host publication	Techniques and Instrumentation for Detection of Exoplanets VIII
Editors	Stuart Shaklan
Publisher	SPIE
ISBN (Electronic)	9781510612570
DOIs	https://doi.org/10.1117/12.2273525
State	Published - 2017
Event	Techniques and Instrumentation for Detection of Exoplanets VIII 2017 - San Diego, United States Duration: Aug 8 2017 → Aug 10 2017

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10400
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Techniques and Instrumentation for Detection of Exoplanets VIII 2017
Country/Territory	United States
City	San Diego
Period	8/8/17 → 8/10/17

All Science Journal Classification (ASJC) codes

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

Keywords

Exoplanets
Extreme Adaptive Optics
High Contrast Imaging
Integral Field Spectrograph

Access to Document

10.1117/12.2273525

Cite this

Groff, T., Chilcote, J., Brandt, T., Kasdin, N. J., Galvin, M., Loomis, C., Rizzo, M., Knapp, G., Guyon, O., Jovanovic, N., Lozi, J., Currie, T., Takato, N., & Hayashi, M. (2017). First light of the CHARIS high-contrast integral-field spectrograph. In S. Shaklan (Ed.), Techniques and Instrumentation for Detection of Exoplanets VIII Article 1040016 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10400). SPIE. https://doi.org/10.1117/12.2273525

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title = "First light of the CHARIS high-contrast integral-field spectrograph",

abstract = "One of the leading direct Imaging techniques, particularly in ground-based imaging, uses a coronagraphic system and integral field spectrograph (IFS). The Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS) is an IFS that has been built for the Subaru telescope. CHARIS has been delivered to the observatory and now sits behind the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system. CHARIS has 'high' and 'low' resolution operating modes. The high-resolution mode is used to characterize targets in J, H, and K bands at R70. The low-resolution prism is meant for discovery and spans J+H+K bands (1.15-2.37 microns) with a spectral resolution of R18. This discovery mode has already proven better than 15-sigma detections of HR8799c,d,e when combining ADI+SDI. Using SDI alone, planets c and d have been detected in a single 24 second image. The CHARIS team is optimizing instrument performance and refining ADI+SDI recombination to maximize our contrast detection limit. In addition to the new observing modes, CHARIS has demonstrated a design with high robustness to spectral crosstalk. CHARIS has completed commissioning and is open for science observations.",

keywords = "Exoplanets, Extreme Adaptive Optics, High Contrast Imaging, Integral Field Spectrograph",

author = "Tyler Groff and Jeffrey Chilcote and Timothy Brandt and Kasdin, {N. Jeremy} and Michael Galvin and Craig Loomis and Maxime Rizzo and Gillian Knapp and Olivier Guyon and Nemanja Jovanovic and Julien Lozi and Thayne Currie and Naruhisa Takato and Masahiko Hayashi",

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year = "2017",

doi = "10.1117/12.2273525",

language = "English (US)",

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

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Groff, T, Chilcote, J, Brandt, T, Kasdin, NJ, Galvin, M, Loomis, C, Rizzo, M, Knapp, G, Guyon, O, Jovanovic, N, Lozi, J, Currie, T, Takato, N & Hayashi, M 2017, First light of the CHARIS high-contrast integral-field spectrograph. in S Shaklan (ed.), Techniques and Instrumentation for Detection of Exoplanets VIII., 1040016, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10400, SPIE, Techniques and Instrumentation for Detection of Exoplanets VIII 2017, San Diego, United States, 8/8/17. https://doi.org/10.1117/12.2273525

First light of the CHARIS high-contrast integral-field spectrograph. / Groff, Tyler; Chilcote, Jeffrey; Brandt, Timothy et al.
Techniques and Instrumentation for Detection of Exoplanets VIII. ed. / Stuart Shaklan. SPIE, 2017. 1040016 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10400).

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

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T1 - First light of the CHARIS high-contrast integral-field spectrograph

AU - Groff, Tyler

AU - Chilcote, Jeffrey

AU - Brandt, Timothy

AU - Kasdin, N. Jeremy

AU - Galvin, Michael

AU - Loomis, Craig

AU - Rizzo, Maxime

AU - Knapp, Gillian

AU - Guyon, Olivier

AU - Jovanovic, Nemanja

AU - Lozi, Julien

AU - Currie, Thayne

AU - Takato, Naruhisa

AU - Hayashi, Masahiko

PY - 2017

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N2 - One of the leading direct Imaging techniques, particularly in ground-based imaging, uses a coronagraphic system and integral field spectrograph (IFS). The Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS) is an IFS that has been built for the Subaru telescope. CHARIS has been delivered to the observatory and now sits behind the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system. CHARIS has 'high' and 'low' resolution operating modes. The high-resolution mode is used to characterize targets in J, H, and K bands at R70. The low-resolution prism is meant for discovery and spans J+H+K bands (1.15-2.37 microns) with a spectral resolution of R18. This discovery mode has already proven better than 15-sigma detections of HR8799c,d,e when combining ADI+SDI. Using SDI alone, planets c and d have been detected in a single 24 second image. The CHARIS team is optimizing instrument performance and refining ADI+SDI recombination to maximize our contrast detection limit. In addition to the new observing modes, CHARIS has demonstrated a design with high robustness to spectral crosstalk. CHARIS has completed commissioning and is open for science observations.

AB - One of the leading direct Imaging techniques, particularly in ground-based imaging, uses a coronagraphic system and integral field spectrograph (IFS). The Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS) is an IFS that has been built for the Subaru telescope. CHARIS has been delivered to the observatory and now sits behind the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system. CHARIS has 'high' and 'low' resolution operating modes. The high-resolution mode is used to characterize targets in J, H, and K bands at R70. The low-resolution prism is meant for discovery and spans J+H+K bands (1.15-2.37 microns) with a spectral resolution of R18. This discovery mode has already proven better than 15-sigma detections of HR8799c,d,e when combining ADI+SDI. Using SDI alone, planets c and d have been detected in a single 24 second image. The CHARIS team is optimizing instrument performance and refining ADI+SDI recombination to maximize our contrast detection limit. In addition to the new observing modes, CHARIS has demonstrated a design with high robustness to spectral crosstalk. CHARIS has completed commissioning and is open for science observations.

KW - Exoplanets

KW - Extreme Adaptive Optics

KW - High Contrast Imaging

KW - Integral Field Spectrograph

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BT - Techniques and Instrumentation for Detection of Exoplanets VIII

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PB - SPIE

T2 - Techniques and Instrumentation for Detection of Exoplanets VIII 2017

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ER -

First light of the CHARIS high-contrast integral-field spectrograph

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