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Mapping Habitable Planetary Environments with Exoplanet Imaging

Research Project

Project/Area Number 21H04998
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Review Section Broad Section B
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

Guyon Olivier  国立天文台, ハワイ観測所, RCUH職員 (90399288)

Co-Investigator(Kenkyū-buntansha) 増田 賢人  大阪大学, 大学院理学研究科, 准教授 (20874168)
小谷 隆行  大学共同利用機関法人自然科学研究機構(機構直轄研究施設), アストロバイオロジーセンター, 准教授 (40554291)
河原 創  国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 准教授 (90649758)
川島 由依  国立研究開発法人理化学研究所, 開拓研究本部, 基礎科学特別研究員 (40897691)
Project Period (FY) 2021-07-05 – 2026-03-31
Project Status Granted (Fiscal Year 2025)
Budget Amount *help
¥183,820,000 (Direct Cost: ¥141,400,000、Indirect Cost: ¥42,420,000)
Fiscal Year 2025: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2024: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2023: ¥27,040,000 (Direct Cost: ¥20,800,000、Indirect Cost: ¥6,240,000)
Fiscal Year 2022: ¥68,770,000 (Direct Cost: ¥52,900,000、Indirect Cost: ¥15,870,000)
Fiscal Year 2021: ¥72,930,000 (Direct Cost: ¥56,100,000、Indirect Cost: ¥16,830,000)
KeywordsAstronomy / Exoplanet / Exoplanets / Telescope / Adaptive Optics / Interferometry / Photonic / Optical Fiber / Spectroscopy / Coronagraphy / Telescopes / adaptive optics / wavefront control / exoplanet / photonics / interferometry / spectroscopy
Outline of Research at the Start

We will image and characterize giant planets in the inner parts of nearby planetary systems with the 8.2m Subaru Telescope. The observations will focus on inner planets to understand the architecture and evolution of planetary systems and their suitability to host habitable planets.

Outline of Annual Research Achievements

The main technical components of the instruments have been completed. The development of the photonic chip circuit has been completed, with delivery of the chip to Subaru Telescope. The chip circuit includes both the nulling (canceling starlight) and wavefront measurement functions. The new 3000-actuator deformable mirror (DM) was delivered. Repair by the vendor was necessary due to an actuator defect. The defect was successfully fixed, and we have verified performance is good. The Adaptive Optics system upgrade design has been completed, including 3000-actuator DM, new visible light wavefront sensor, new calibration source. Components have been fabricated and tested in the laboratory and system installation at the telescope is ongoing.

We have started on-sky observations of exoplanets identified by astrometric acceleration, and have identified promising candidates we are following up as part of our ongoing survey. Our observations are targeting stars with sign of astrometric acceleration which indicates that there may be a companion. We are using the current extreme AO system and coronagraph to observe these stars to confirm planets.

We have also started to develop PSF calibration algorithm to accurately predict residual starlight in the science data. Results indicate we can gain a factor 10x in contrast.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

We have started survey observations and are upgrading the instrument with the new adaptive optics (deformable mirror and wavefront sensor) and photonic nulling chip to augment performance. The photonic chip development has been completed successfully.

The main technical issue has been delay due to deformable mirror (DM) issue. This issue has now been fully resolved and we have mitigated delay by preparing for a quicker installation of the DM at the telescope. The DM is being installed in may 2024.

We are starting to obtain science results with identification of promising planet candidates from our ongoing survey. We are initially focusing on more distant orbits and will probe planets at smaller orbits as the instrument at the telescope is being upgraded.

Strategy for Future Research Activity

We will be continuing our ongoing survey of exoplanets at the Subaru Telescope. We have several planet candidates we have identified that we will follow for confirmation. Thanks to both imaging data (taken by our system) and astrometric data (taken by the Gaia space mission), we will be able to confirm the orbit and mass of the exoplanets.

In the next few months we will complete the instrument upgrade at the telescope.
The first stage correction adaptive optics (AO) system will be upgraded from its current 188-element to 3000-element system including both visible and near-IR wavefront sensing. This AO upgrade will be completed in summer 2024. The photonic chip will be installed on the instrument in summer 2024.

Starting in fall 2024, we will use this new upgrades to probe planets in closer orbits.

Assessment Rating
Interim Assessment Comments (Rating)

A: In light of the aim of introducing the research area into the research categories, the expected progress has been made in research.

Report

(7 results)
  • 2023 Abstract (Interim Assessment) ( PDF )   Annual Research Report   Interim Assessment (Comments) ( PDF )
  • 2022 Annual Research Report
  • 2021 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (44 results)

All 2024 2023 2022 Other

All Journal Article (30 results) (of which Int'l Joint Research: 29 results,  Peer Reviewed: 21 results,  Open Access: 11 results) Presentation (13 results) (of which Int'l Joint Research: 9 results) Remarks (1 results)

  • [Journal Article] Testing Magnetospheric Accretion as an Hα Emission Mechanism of Embedded Giant Planets: The Case Study for the Disk Exhibiting Meridional Flow Around HD 1632962024

    • Author(s)
      Hasegawa Yasuhiro、Uyama Taichi、Hashimoto Jun、Aoyama Yuhiko、Deo Vincent、Guyon Olivier、Lozi Julien、Norris Barnaby、Tamura Motohide、Vievard Sebastien
    • Journal Title

      The Astronomical Journal

      Volume: 167 Issue: 3 Pages: 105-105

    • DOI

      10.3847/1538-3881/ad1cec

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] JASMINE: Near-infrared astrometry and time-series photometry science2024

    • Author(s)
      Kawata Daisuke、Kawahara Hajime、Gouda Naoteru、et al.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: psae020 Issue: 3 Pages: 1-40

    • DOI

      10.1093/pasj/psae020

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Focal-plane wavefront sensing with photonic lanterns II: numerical characterization and optimization2023

    • Author(s)
      Lin Jonathan、Fitzgerald Michael P.、Xin Yinzi、Kim Yoo Jung、Guyon Olivier、Leon-Saval Sergio G.、Norris Barnaby、Jovanovic Nemanja
    • Journal Title

      Journal of the Optical Society of America B

      Volume: 40 Issue: 12 Pages: 3196-3196

    • DOI

      10.1364/josab.502962

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Real-time Experimental Demonstrations of a Photonic Lantern Wave-front Sensor2023

    • Author(s)
      Lin Jonathan W.、Fitzgerald Michael P.、Xin Yinzi、Kim Yoo Jung、Guyon Olivier、Norris Barnaby、Betters Christopher、Leon-Saval Sergio、Ahn Kyohoon、Deo Vincent、Lozi Julien、Vievard S?bastien、Levinstein Daniel、Sallum Steph、Jovanovic Nemanja
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 959 Issue: 2 Pages: L34-L34

    • DOI

      10.3847/2041-8213/ad12a4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Design, manufacturing, and testing of phase-induced amplitude apodization and phase-shifting optics for segmented telescopes2023

    • Author(s)
      Martinez P.、Beaulieu M.、Gouvret C.、Spang A.、Marcotto A.、Guyon O.、Tisserand S.、Sauget V.、Gautier S.、Le Duigou J. M.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 680 Pages: A6-A6

    • DOI

      10.1051/0004-6361/202347337

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nonlinear Wave Front Reconstruction from a Pyramid Sensor using Neural Networks2023

    • Author(s)
      Wong Alison P.、Norris Barnaby R. M.、Deo Vincent、Tuthill Peter G.、Scalzo Richard、Sweeney David、Ahn Kyohoon、Lozi Julien、Vievard S?bastien、Guyon Olivier
    • Journal Title

      Publications of the Astronomical Society of the Pacific

      Volume: 135 Issue: 1053 Pages: 114501-114501

    • DOI

      10.1088/1538-3873/acfdcb

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Machine-learning approach for optimal self-calibration and fringe tracking in photonic nulling interferometry2023

    • Author(s)
      Norris Barnaby R. M.、Martinod Marc-Antoine、Tuthill Peter、Gross Simon、Cvetojevic Nick、Jovanovic Nemanja、Lagadec Tiphaine、Klinner-Teo Teresa、Guyon Olivier、Lozi Julien、Deo Vincent、Vievard Sebastien、Arriola Alex、Gretzinger Thomas、Lawrence Jon S.、Withford Michael J.
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 9 Issue: 04 Pages: 048005-048005

    • DOI

      10.1117/1.jatis.9.4.048005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Single-aperture spectro-interferometry in the visible at the Subaru telescope with FIRST: First on-sky demonstration on Keho‘oea (<i>α</i> Lyrae) and Hokulei (<i>α</i> Aurigae)2023

    • Author(s)
      Vievard S.、Huby E.、Lacour S.、Guyon O.、Cvetojevic N.、Jovanovic N.、Lozi J.、Barjot K.、Deo V.、Duch?ne G.、Kotani T.、Marchis F.、Rouan D.、Martin G.、Lallement M.、Lapeyrere V.、Martinache F.、Ahn K.、Skaf N.、Tamura M.、Leilehua Yuen D.、Leinani Lozi A.、Perrin G.
    • Journal Title

      Astronomy and Astrophysics

      Volume: 677 Pages: A84-A84

    • DOI

      10.1051/0004-6361/202245115

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] From Dust to Nanodust: Resolving Circumstellar Dust from the Colliding-wind Binary Wolf-Rayet 1402023

    • Author(s)
      Lau Ryan M.、Wang Jason、Hankins Matthew J.、Currie Thayne、Deo Vincent、Endo Izumi、Guyon Olivier、Han Yinuo、Jones Anthony P.、Jovanovic Nemanja、Lozi Julien、Moffat Anthony F. J.、Onaka Takashi、Ruane Garreth、Sander Andreas A. C.、Tinyanont Samaporn、Tuthill Peter G. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 951 Issue: 2 Pages: 89-89

    • DOI

      10.3847/1538-4357/acd4c5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Combining EFC with spatial LDFC for high-contrast imaging on Subaru/SCExAO2023

    • Author(s)
      Ahn K.、Guyon O.、Lozi J.、Vievard S.、Deo V.、Skaf N.、Bragg J. C.、Haffert S. Y.、Males J. R.、Currie T.
    • Journal Title

      Astronomy and Astrophysics

      Volume: 673 Pages: A29-A29

    • DOI

      10.1051/0004-6361/202244961

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Implicit electric field conjugation: Data-driven focal plane control2023

    • Author(s)
      Haffert S. Y.、Males J. R.、Ahn K.、Van Gorkom K.、Guyon O.、Close L. M.、Long J. D.、Hedglen A. D.、Schatz L.、Kautz M.、Lumbres J.、Rodack A.、Knight J. M.、Miller K.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 673 Pages: A28-A28

    • DOI

      10.1051/0004-6361/202244960

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Direct imaging and astrometric detection of a gas giant planet orbiting an accelerating star2023

    • Author(s)
      Currie Thayne、Brandt G. Mirek、Brandt Timothy D.、Lacy Brianna、Burrows Adam、Guyon Olivier、Tamura Motohide、Liu Ranger Y.、Sagynbayeva Sabina、Tobin Taylor、Chilcote Jeffrey、Groff Tyler、Marois Christian、Thompson William、Murphy Simon J.、Kuzuhara Masayuki、Lawson Kellen、Lozi Julien、、、Kudo Tomoyuki、et al.
    • Journal Title

      Science

      Volume: 380 Issue: 6641 Pages: 198-203

    • DOI

      10.1126/science.abo6192

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Differential speckle polarimetry with SCExAO VAMPIRES2023

    • Author(s)
      Safonov Boris、Millar-Blanchaer Maxwell A.、Zhang Manxuan、Norris Barnaby R.、Guyon Olivier、Lozi Julien、Sallum Steph
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 9 Issue: 02 Pages: 028005-028005

    • DOI

      10.1117/1.jatis.9.2.028005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spectrally dispersed kernel phase interferometry with SCExAO/CHARIS: proof of concept and calibration strategies2023

    • Author(s)
      Chaushev Alexander、Sallum Steph、Lozi Julien、Martinache Frantz、Chilcote Jeffrey、Groff Tyler、Guyon Olivier、Kasdin Jeremy、Norris Barnaby、Skemer Andy
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 9 Issue: 02 Pages: 028004-028004

    • DOI

      10.1117/1.jatis.9.2.028004

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photonic beam-combiner for visible interferometry with Subaru coronagraphic extreme adaptive optics/fibered imager for a single telescope: laboratory characterization and design optimization2023

    • Author(s)
      Vievard, Sebastien, Lallement Manon、Huby Elsa、Lacour Sylvestre、Martin Guillermo、Barjot Kevin、Perrin Guy、Rouan Daniel、Lapeyrere Vincent、Vievard Sebastien、Guyon Olivier、Lozi Julien、Deo Vincent、Kotani Takayuki、Pham Cecil、Cassagnettes Cedric、Billat Adrien、Cvetojevic Nick、Marchis Franck
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 9 Issue: 02 Pages: 025003-025003

    • DOI

      10.1117/1.jatis.9.2.025003

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Integrated coronagraphy and wavefront sensing with the PIAACMC2023

    • Author(s)
      Haffert Sebastiaan Y.、Males Jared R.、Guyon Olivier
    • Journal Title

      Proceedings of the SPIE

      Volume: 12680 Pages: 93-93

    • DOI

      10.1117/12.2677825

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Characterizing the instrumental polarization of SCExAO VAMPIRES2023

    • Author(s)
      Zhang Manxuan、Millar-Blanchaer Maxwell、Safonov Boris、Lucas Miles、Lilley Lucinda、Ashcraft Jaren、Norris Barnaby、Lozi Julien、Guyon Olivier、Bottom Michael
    • Journal Title

      Proceedings of the SPIE

      Volume: 12680 Pages: 29-29

    • DOI

      10.1117/12.2677599

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Exploring the potential of coherent imaging using photonic lanterns with beam combiners2023

    • Author(s)
      Kim Yoo Jung、Fitzgerald Michael、Lin Jonathan、Sallum Steph、Xin Yinzi、Jovanovic Nemanja、Leon-Saval Sergio、Betters Christopher、Gatkine Pradip、Guyon Olivier、Lozi Julien、Mawet Dimitri、Norris Barnaby、Vievard S?bastien
    • Journal Title

      Proceedings of the SPIE

      Volume: 12680 Pages: 21-21

    • DOI

      10.1117/12.2677054

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards Hα imaging of protoplanets2023

    • Author(s)
      Vievard Sebastien B.、Lallement Manon、Huby Elsa、Lacour Sylvestre、Guyon Olivier、Jovanovic Nemanja、Leon-Saval Sergio、Lozi Julien、Deo Vincent、Ahn Kyohoon、Cvetojevic Nick、Barjot Kevin、Martin Guillermo、Kenchington-Goldsmith Harry-Dean、Duch?ne Gaspard、Kotani Takayuki、et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 12680 Pages: 18-18

    • DOI

      10.1117/12.2676319

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] The path to detecting extraterrestrial life with astrophotonics2023

    • Author(s)
      Jovanovic Nemanja、Xin Yinzi、Fitzgerald Michael、Guyon Olivier、Tuthill Peter、Norris Barnaby、Gatkine Pradip、Sercel Greg、et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 12680 Pages: 17-17

    • DOI

      10.1117/12.2677951

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Development of the coherent differential imaging on speckle area nulling (CDI-SAN) method2023

    • Author(s)
      Yoneta Kenta、Nishikawa Jun、Hayano Yutaka、Iribe Masatsugu、Yamamoto Kodai、Tsukui Ryo、Murakami Naoshi、Asano Mizuki、Muramatsu Hiromi、Tanaka Yosuke、Tamura Motohide、Sumi Takahiro、Yamada Toru、Guyon Olivier、Lozi Julien、Deo Vincent、Vievard Sebastien、Ahn Kyohoon
    • Journal Title

      Proceeding of SPIE

      Volume: 12680 Pages: 14-14

    • DOI

      10.1117/12.2676294

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] A non-linear curvature wavefront sensor for the Subaru telescope’s AO3k system2023

    • Author(s)
      Ahn Kyohoon、Guyon Olivier、Lozi Julien、Vievard Sebastien、Deo Vincent、Lellement Manon、Bragg Jennifer C.
    • Journal Title

      Proceedings of the SPIE

      Volume: 12680 Pages: 12-12

    • DOI

      10.1117/12.2676667

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] A Spectroscopic Thermometer: Individual Vibrational Band Spectroscopy with the Example of OH in the Atmosphere of WASP-33b2023

    • Author(s)
      Ernst J. W.、Waldmann Ingo、Tennyson Jonathan、Kawahara Hajime、Kuzuhara Masayuki、Hirano Teruyuki、Kotani Takayuki、Kawashima Yui、Masuda Kento、Birkby Jayne L.、Watson Chris A.、Tamura Motohide、Zwintz Konstanze、Harakawa Hiroki、Kudo Tomoyuki、Hodapp Klaus、Jacobson Shane、Konishi Mihoko、Kurokawa Takashi et al.
    • Journal Title

      The Astronomical Journal

      Volume: 166 Issue: 2 Pages: 41-41

    • DOI

      10.3847/1538-3881/acdb75

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Images of embedded Jovian planet formation at a wide separation around AB Aurigae2022

    • Author(s)
      Currie T., Lawson K., Schneider G., Lyra W., Wisniewski J., Grady C., Guyon O., Tamura M., Kotani T., Kawahara H., Brandt T., Uyama T., Muto T., Dong R., Kudo T., Hashimoto J., Fukagawa M., Wagner K., Lozi J., Chilcote J., Tobin T., Groff T., Ward-Duong K., Januszewski W., Norris B., Tuthill P., et al.
    • Journal Title

      Nature Astronomy

      Volume: 6 Issue: 6 Pages: 751-759

    • DOI

      10.1038/s41550-022-01634-x

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High contrast imaging at the photon noise limit with WFS-based PSF calibration2022

    • Author(s)
      Guyon Olivier、Norris Barnaby、Martinod Marc-Antoine、Ahn Kyohoon、Deo Vincent、Skaf Nour、Lozi Julien、Vievard Sebastien、Haffert Sebastiaan、Currie Thayne、Males Jared、Wong Alison、Tuthill Peter
    • Journal Title

      SPIE Proceedings

      Volume: 12185 Pages: 13-13

    • DOI

      10.1117/12.2630503

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] AO3000 at Subaru: combining for the first time a NIR WFS using First Light’s C-RED ONE and ALPAO’s 64x64 DM2022

    • Author(s)
      Lozi Julien、Ahn Kyohoon、Clergeon Christophe、Deo Vincent、Guyon Olivier、Hattori Takashi、Minowa Yosuke、Nishiyama Shogo、Ono Yoshito .、Vievard Sebastien
    • Journal Title

      SPIE Proceedings

      Volume: 12185 Pages: 1218533-1218533

    • DOI

      10.1117/12.2630634

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Probing Photon Statistics in Adaptive Optics Images with SCExAO/MEC*2022

    • Author(s)
      Steiger Sarah、Brandt Timothy D.、Guyon Olivier、Swimmer Noah、Walter Alexander B.、Bockstiegel Clinton、Lozi Julien、Deo Vincent、Vievard Sebastien、Skaf Nour、Ahn Kyohoon、Jovanovic Nemanja、Martinache Frantz、Mazin Benjamin A.
    • Journal Title

      The Astronomical Journal

      Volume: 164 Issue: 5 Pages: 186-186

    • DOI

      10.3847/1538-3881/ac922f

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] SCExAO and Keck Direct Imaging Discovery of a Low-mass Companion Around the Accelerating F5 Star HIP 5319*2022

    • Author(s)
      Swimmer N., Currie T., Steiger S., Brandt G. M., Brandt T. D., Guyon O., Kuzuhara M., Chilcote J., Tobin T., Groff T. D., Lozi J., Bailey J. I. III, Walter A. B., Fruitwala N., Zobrist N., Smith J. P., Coiffard G., Dodkins R., Davis K. K., Daal M., Bumble B., Vievard S., Skaf N., Deo V., Jovanovic N., et al.
    • Journal Title

      The Astronomical Journal

      Volume: 164 Issue: 4 Pages: 152-152

    • DOI

      10.3847/1538-3881/ac85a8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Autodifferentiable Spectrum Model for High-dispersion Characterization of Exoplanets and Brown Dwarfs2022

    • Author(s)
      Kawahara Hajime、Kawashima Yui、Masuda Kento、Crossfield Ian J. M.、Pannier Erwan、van den Bekerom Dirk
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: 258 Issue: 2 Pages: 31-31

    • DOI

      10.3847/1538-4365/ac3b4d

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On-sky validation of image-based adaptive optics wavefront sensor referencing2022

    • Author(s)
      Skaf Nour、Guyon Olivier、Gendron ?ric、Ahn Kyohoon、Bertrou-Cantou Arielle、Boccaletti Anthony、Cranney Jesse、Currie Thayne、Deo Vincent、Edwards Billy、Ferreira Florian、Gratadour Damien、Lozi Julien、Norris Barnaby、Sevin Arnaud、Vidal Fabrice、Vievard S?bastien
    • Journal Title

      Astronomy &amp; Astrophysics

      Volume: 659 Pages: A170-A170

    • DOI

      10.1051/0004-6361/202141514

    • Related Report
      2021 Annual Research Report
  • [Presentation] Development of a non-linear curvature wavefront sensor for the Subaru Telescope's AO3k system2023

    • Author(s)
      Ahn, K.,;Guyon, O.; Lozi, J.; Vievard, S.; Deo, V.; Lallement, M.; Bragg, J.~C.
    • Organizer
      Adaptive Optics for Extremely Large Telescopes (AO4ELT7)
    • Related Report
      2023 Annual Research Report
  • [Presentation] AO3k at Subaru: the facility adaptive optics goes extreme2023

    • Author(s)
      Lozi, Julien; Ahn, Kyohoon; Chun, Alicia; Clergeon, Christophe; Deo, Vincent; Guyon, Olivier; Hattori, Takashi; Minowa, Yosuke; Nishiyama, Shogo; Ono, Yoshito; Vievard, Sebastien
    • Organizer
      Adaptive Optics for Extremely Large Telescopes (AO4ELT7)
    • Related Report
      2023 Annual Research Report
  • [Presentation] A non-linear curvature wavefront sensor for the Subaru telescope’s AO3k system2023

    • Author(s)
      Ahn, K., Guyon, O., Lozi, J., Vievard, S., Deo, V., Lallement, M., Bragg, J., C.
    • Organizer
      SPIE Optical Engineering + Applications, (San Diego, CA, USA, Aug 20-25, 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of the coherent differential imaging on speckle area nulling (CDI-SAN) method2023

    • Author(s)
      Yoneta, K., Nishikawa, J., Hayano, Y., Iribe, M., Yamamoto, K., Tsukui, R., Murakami, N., Asano, M., Muramatsu, H., Tanaka, Y., Tamura, M., Sumi, T., Yamada, T., Guyon, O., Lozi, J., Deo, V., Vievard, S., Ahn, K.
    • Organizer
      SPIE Optical Engineering + Applications, (San Diego, CA, USA, Aug 20-25, 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Photonic spectro-interferometry with SCExAO/FIRST at the Subaru Telescope: towards Hα imaging of protoplanets2023

    • Author(s)
      Vievard, S., Lallement, M., Huby, E., Lacour, S., Guyon, O., Jovanovic, N., Leon-Saval, S., Lozi, J., Deo, V., Ahn
    • Organizer
      SPIE Optical Engineering + Applications, (San Diego, CA, USA, Aug 20-25, 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Extreme AO and diffraction-limited AO at Subaru2023

    • Author(s)
      Olivier Guyon
    • Organizer
      GOPIRA, Japan
    • Related Report
      2023 Annual Research Report
  • [Presentation] Exteme-AO: Current and Future Instrumentation2023

    • Author(s)
      Olivier Guyon
    • Organizer
      Subaru Users Meeting
    • Related Report
      2023 Annual Research Report
  • [Presentation] Machine learning for wavefront sensing2022

    • Author(s)
      Wong A. P., Norris B. R. M., Deo V., Guyon O., Tuthill P. G., Lozi J., Vievard S., Ahn K.
    • Organizer
      SPIE Astronomical Telescopes + Instrumentation, 2022, Montreal, Quebec, Canada
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Achromatic nulling interferometry and fringe tracking with 3D-photonic tricouplers with GLINT2022

    • Author(s)
      Martinod M.-A., Klinner-Teo T., Tuthill P., Gross S., Arcadi E., Douglass G., Webb J., Norris B., Guyon O., Lozi J., Lagadec T., Jovanovic N., Cvetojevic N., Arriola A., Gretzinger T., Withford M. J., Lawrence J. S., Leon-Saval S.
    • Organizer
      SPIE Astronomical Telescopes + Instrumentation, 2022, Montreal, Quebec, Canada
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High contrast imaging at the photon noise limit with WFS-based PSF calibration2022

    • Author(s)
      Guyon O., Norris B., Martinod M.-A., Ahn K., Deo V., Skaf N., Lozi J., Vievard S., Haffert S. Y., Currie T., Males J. R., Wong A., Tuthill P.
    • Organizer
      SPIE Astronomical Telescopes + Instrumentation, 2022, Montreal, Quebec, Canada
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimal self-calibration and fringe tracking in photonic nulling interferometers using machine learning2022

    • Author(s)
      Norris B. R. M., Martinod M.-A., Tuthill P., Gross S., Cvetojevic N., Jovanovic N., Lagadec T., Klinner-teo T., Guyon O., Lozi J., Deo V., Vievard S., Arriola A., Gretzinger T., Lawrence J. S., Withford M. J.
    • Organizer
      SPIE Astronomical Telescopes + Instrumentation, 2022, Montreal, Quebec, Canada
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AO3000 at Subaru: combining for the first time a NIR WFS using First Light's C-RED ONE and ALPAO's 64x64 DM2022

    • Author(s)
      Lozi J., Ahn K., Clergeon C., Deo V., Guyon O., Hattori T., Minowa Y., Nishiyama S., Ono Y., Vievard S.
    • Organizer
      SPIE Astronomical Telescopes + Instrumentation, 2022, Montreal, Quebec, Canada
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AO3000 at Subaru: combining for the first time a NIR WFS using First Light's C-RED ONE and ALPAO's 64x64 DM2022

    • Author(s)
      Lozi Julien、Ahn Kyohoon、Clergeon Christophe、Deo Vincent、Guyon Olivier、Hattori Takashi、Minowa Yosuke、Nishiyama Shogo、Ono Yoshito .、Vievard Sebastien
    • Organizer
      SPIE Astronomical Telescopes + Instrumentation, 2022, Montreal, Quebec, Canada
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] Subaru Coronagraphic Extreme Adaptive Optics

    • URL

      https://www.naoj.org/Projects/SCEXAO/scexaoWEB/000home.web/indexm.html

    • Related Report
      2022 Annual Research Report

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Published: 2021-07-08   Modified: 2025-06-20  

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