Imaging habitable planets in optical/NIR with large ground-based telescopes: WFS/C challenges, opportunities and R&D activities

Olivier Guyon; Mark Chun; Damien Gratadour; Michael Fitzgerald; Nemanja Jovanovic; Julien Lozi; Jared Males; Frantz Martinache; Dimitri Mawet; Benjamin Mazin; Ananya Sahoo; Arnaud Sevin; Andy Skemer; Sebastien Vievard

Imaging habitable planets in optical/NIR with large ground-based telescopes: WFS/C challenges, opportunities and R&D activities

Olivier Guyon, Mark Chun, Damien Gratadour, Michael Fitzgerald, Nemanja Jovanovic, Julien Lozi, Jared Males, Frantz Martinache, Dimitri Mawet, Benjamin Mazin, Ananya Sahoo, Arnaud Sevin, Andy Skemer, Sebastien Vievard

Optical Sciences

Research output: Contribution to conference › Paper › peer-review

Abstract

Large ground-based telescopes (ELT, TMT, GMT) will have the angular resolution and sensitivity to image and characterize (spectroscopy) rocky planets in the habitable zones of nearby stars. The nearest M-type stars are particularly attractive targets thanks to moderate reflected light contrast levels and a large number of potential targets. Wavefront control and residual starlight calibration are the most significant challenges to be addressed, requiring performance levels beyond what current on-sky AO systems deliver. Extreme-AO systems will need to deliver 1e5 raw contrast within a few diffractive limits from the optical axis to allow for direct imaging of habitable planets. Differential detection techniques relying on spectroscopy, polarization and/or coherence will then be employed to separate planet signal from speckle noise. We describe technical solutions to meet the ExAO demands for direct imaging of habitable planets with ELTs.

Original language	English (US)
State	Published - 2019
Event	6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019 - Quebec City, Canada Duration: Jun 9 2019 → Jun 14 2019

Conference

Conference	6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019
Country/Territory	Canada
City	Quebec City
Period	6/9/19 → 6/14/19

Keywords

Adaptive optics
Coronagraphy
Exoplanets
High contrast imaging

ASJC Scopus subject areas

Space and Planetary Science
Control and Systems Engineering
Mechanical Engineering
Electronic, Optical and Magnetic Materials
Astronomy and Astrophysics
Instrumentation

Cite this

Guyon, O., Chun, M., Gratadour, D., Fitzgerald, M., Jovanovic, N., Lozi, J., Males, J., Martinache, F., Mawet, D., Mazin, B., Sahoo, A., Sevin, A., Skemer, A., & Vievard, S. (2019). Imaging habitable planets in optical/NIR with large ground-based telescopes: WFS/C challenges, opportunities and R&D activities. Paper presented at 6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019, Quebec City, Canada.

Imaging habitable planets in optical/NIR with large ground-based telescopes: WFS/C challenges, opportunities and R&D activities. / Guyon, Olivier; Chun, Mark; Gratadour, Damien et al.
2019. Paper presented at 6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019, Quebec City, Canada.

Research output: Contribution to conference › Paper › peer-review

Guyon, O, Chun, M, Gratadour, D, Fitzgerald, M, Jovanovic, N, Lozi, J, Males, J, Martinache, F, Mawet, D, Mazin, B, Sahoo, A, Sevin, A, Skemer, A & Vievard, S 2019, 'Imaging habitable planets in optical/NIR with large ground-based telescopes: WFS/C challenges, opportunities and R&D activities', Paper presented at 6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019, Quebec City, Canada, 6/9/19 - 6/14/19.

@conference{c88e6ead35a04c1d9e9ef9ad42a9db2e,

title = "Imaging habitable planets in optical/NIR with large ground-based telescopes: WFS/C challenges, opportunities and R&D activities",

abstract = "Large ground-based telescopes (ELT, TMT, GMT) will have the angular resolution and sensitivity to image and characterize (spectroscopy) rocky planets in the habitable zones of nearby stars. The nearest M-type stars are particularly attractive targets thanks to moderate reflected light contrast levels and a large number of potential targets. Wavefront control and residual starlight calibration are the most significant challenges to be addressed, requiring performance levels beyond what current on-sky AO systems deliver. Extreme-AO systems will need to deliver 1e5 raw contrast within a few diffractive limits from the optical axis to allow for direct imaging of habitable planets. Differential detection techniques relying on spectroscopy, polarization and/or coherence will then be employed to separate planet signal from speckle noise. We describe technical solutions to meet the ExAO demands for direct imaging of habitable planets with ELTs.",

keywords = "Adaptive optics, Coronagraphy, Exoplanets, High contrast imaging",

author = "Olivier Guyon and Mark Chun and Damien Gratadour and Michael Fitzgerald and Nemanja Jovanovic and Julien Lozi and Jared Males and Frantz Martinache and Dimitri Mawet and Benjamin Mazin and Ananya Sahoo and Arnaud Sevin and Andy Skemer and Sebastien Vievard",

note = "Funding Information: The author acknowledges funding support from the Japanese Society for the Promotion of Sciences (JSPS grants #23340051, #26220704, #23103002, #19H00703 and #19H00695), the Astrobiology Center of the National Institutes for Natural Sciences, Japan, the Mt Cuba Foundation and the directors contingency fund at Subaru Telescope. Publisher Copyright: {\textcopyright} 2019 AO4ELT 2019 - Proceedings 6th Adaptive Optics for Extremely Large Telescopes. All rights reserved.; 6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019 ; Conference date: 09-06-2019 Through 14-06-2019",

year = "2019",

language = "English (US)",

}

TY - CONF

T1 - Imaging habitable planets in optical/NIR with large ground-based telescopes

T2 - 6th International Conference on Adaptive Optics for Extremely Large Telescopes, AO4ELT 2019

AU - Guyon, Olivier

AU - Chun, Mark

AU - Gratadour, Damien

AU - Fitzgerald, Michael

AU - Jovanovic, Nemanja

AU - Lozi, Julien

AU - Males, Jared

AU - Martinache, Frantz

AU - Mawet, Dimitri

AU - Mazin, Benjamin

AU - Sahoo, Ananya

AU - Sevin, Arnaud

AU - Skemer, Andy

AU - Vievard, Sebastien

N1 - Funding Information: The author acknowledges funding support from the Japanese Society for the Promotion of Sciences (JSPS grants #23340051, #26220704, #23103002, #19H00703 and #19H00695), the Astrobiology Center of the National Institutes for Natural Sciences, Japan, the Mt Cuba Foundation and the directors contingency fund at Subaru Telescope. Publisher Copyright: © 2019 AO4ELT 2019 - Proceedings 6th Adaptive Optics for Extremely Large Telescopes. All rights reserved.

PY - 2019

Y1 - 2019

N2 - Large ground-based telescopes (ELT, TMT, GMT) will have the angular resolution and sensitivity to image and characterize (spectroscopy) rocky planets in the habitable zones of nearby stars. The nearest M-type stars are particularly attractive targets thanks to moderate reflected light contrast levels and a large number of potential targets. Wavefront control and residual starlight calibration are the most significant challenges to be addressed, requiring performance levels beyond what current on-sky AO systems deliver. Extreme-AO systems will need to deliver 1e5 raw contrast within a few diffractive limits from the optical axis to allow for direct imaging of habitable planets. Differential detection techniques relying on spectroscopy, polarization and/or coherence will then be employed to separate planet signal from speckle noise. We describe technical solutions to meet the ExAO demands for direct imaging of habitable planets with ELTs.

AB - Large ground-based telescopes (ELT, TMT, GMT) will have the angular resolution and sensitivity to image and characterize (spectroscopy) rocky planets in the habitable zones of nearby stars. The nearest M-type stars are particularly attractive targets thanks to moderate reflected light contrast levels and a large number of potential targets. Wavefront control and residual starlight calibration are the most significant challenges to be addressed, requiring performance levels beyond what current on-sky AO systems deliver. Extreme-AO systems will need to deliver 1e5 raw contrast within a few diffractive limits from the optical axis to allow for direct imaging of habitable planets. Differential detection techniques relying on spectroscopy, polarization and/or coherence will then be employed to separate planet signal from speckle noise. We describe technical solutions to meet the ExAO demands for direct imaging of habitable planets with ELTs.

KW - Adaptive optics

KW - Coronagraphy

KW - Exoplanets

KW - High contrast imaging

UR - http://www.scopus.com/inward/record.url?scp=85084945652&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85084945652&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85084945652

Y2 - 9 June 2019 through 14 June 2019

ER -

Imaging habitable planets in optical/NIR with large ground-based telescopes: WFS/C challenges, opportunities and R&D activities

Abstract

Conference

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this