[ { "id": "authors:kft8t-ncp13", "collection": "authors", "collection_id": "kft8t-ncp13", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20210910-175930615", "type": "book_section", "title": "High-contrast integral field spectropolarimetry of planet-forming disks with SCExAO/CHARIS", "author": [ { "family_name": "Lawson", "given_name": "Kellen", "orcid": "0000-0002-6964-8732", "clpid": "Lawson-Kellen-D" }, { "family_name": "Currie", "given_name": "Thayne", "orcid": "0000-0002-7405-3119", "clpid": "Currie-Thayne" }, { "family_name": "Wisniewski", "given_name": "John P.", "orcid": "0000-0001-9209-1808", "clpid": "Wisniewski-John-P" }, { "family_name": "Hashimoto", "given_name": "Jun", "orcid": "0000-0002-3053-3575", "clpid": "Hashimoto-Jun" }, { "family_name": "Guyon", "given_name": "Olivier", "orcid": "0000-0002-1097-9908", "clpid": "Guyon-Olivier" }, { "family_name": "Kasdin", "given_name": "N. Jeremy", "orcid": "0000-0002-6963-7486", "clpid": "Kasdin-N-Jeremy" }, { "family_name": "Groff", "given_name": "Tyler D.", "orcid": "0000-0001-5978-3247", "clpid": "Groff-Tyler-D" }, { "family_name": "Lozi", "given_name": "Julien", "orcid": "0000-0002-3047-1845", "clpid": "Lozi-Julien" }, { "family_name": "Brandt", "given_name": "Timothy D.", "orcid": "0000-0003-2630-8073", "clpid": "Brandt-Timothy-D" }, { "family_name": "Chilcote", "given_name": "Jeffrey", "orcid": "0000-0001-6305-7272", "clpid": "Chilcote-Jeffrey-K" }, { "family_name": "Deo", "given_name": "Vincent", "orcid": "0000-0003-4514-7906", "clpid": "Deo-Vincent" }, { "family_name": "Uyama", "given_name": "Taichi", "orcid": "0000-0002-6879-3030", "clpid": "Uyama-Taichi" }, { "family_name": "Vievard", "given_name": "S\u00e9bastien", "orcid": "0000-0003-4018-2569", "clpid": "Vievard-S\u00e9bastien" } ], "contributor": [ { "family_name": "Shaklan", "given_name": "Stuart B.", "clpid": "Shaklan-Stuart-B" }, { "family_name": "Ruane", "given_name": "Garreth J.", "orcid": "0000-0003-4769-1665", "clpid": "Ruane-Garreth-J" } ], "abstract": "We describe a new high-contrast imaging capability well suited for studying planet-forming disks: near-infrared (NIR) high-contrast spectropolarimetric imaging with the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system coupled with the CHARIS integral field spectrograph (IFS). The advent of extreme AO systems, like SCExAO, has enabled recovery of planet-mass companions at the expected locations of gas-giant formation in young disks alongside disk structures (such as gaps or spirals) that may indicate protoplanet formation. In combination with SCExAO, the CHARIS IFS in polarimetry mode allows characterization of these systems at wavelengths spanning the NIR J, H, and K bands (1.1\u20132.4 \u03bcm, R~20) and at angular separations as small as 0.04\".", "doi": "10.1117/12.2594819", "publisher": "Society of Photo-optical Instrumentation Engineers", "publication_date": "2021-09-01" }, { "id": "authors:tdv9s-jdm93", "collection": "authors", "collection_id": "tdv9s-jdm93", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20210113-131342338", "type": "book_section", "title": "Data processing for high-contrast imaging with the James Webb Space Telescope", "book_title": "Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave", "author": [ { "family_name": "Ygouf", "given_name": "Marie", "orcid": "0000-0001-7591-2731", "clpid": "Ygouf-Marie" }, { "family_name": "Rocha", "given_name": "Gra\u00e7a", "orcid": "0000-0002-4150-8076", "clpid": "Rocha-Gra\u00e7a-M" }, { "family_name": "Beichman", "given_name": "Charles", "orcid": "0000-0002-5627-5471", "clpid": "Beichman-Charles-A" }, { "family_name": "Greenbaum", "given_name": "Alexandra", "orcid": "0000-0002-7162-8036", "clpid": "Greenbaum-Alexandra-Z" }, { "family_name": "Leisenring", "given_name": "Jarron", "orcid": "0000-0002-0834-6140", "clpid": "Leisenring-Jarron-M" }, { "family_name": "De Furio", "given_name": "Matthew", "orcid": "0000-0003-1863-4960", "clpid": "De-Furio-Matthew" }, { "family_name": "Meyer", "given_name": "Michael", "orcid": "0000-0003-1227-3084", "clpid": "Meyer-Michael-R" }, { "family_name": "Girard", "given_name": "Julien", "orcid": "0000-0001-8627-0404", "clpid": "Girard-Julien-H" }, { "family_name": "Pueyo", "given_name": "Laurent A.", "orcid": "0000-0003-3818-408X", "clpid": "Pueyo-Laurent-A" }, { "family_name": "Perrin", "given_name": "Marshall", "orcid": "0000-0002-3191-8151", "clpid": "Perrin-Marshall-D" }, { "family_name": "Uyama", "given_name": "Taichi", "orcid": "0000-0002-6879-3030", "clpid": "Uyama-Taichi" }, { "family_name": "Green", "given_name": "Joseph J.", "clpid": "Green-Joseph-J" }, { "family_name": "Jewell", "given_name": "Jeffrey B.", "clpid": "Jewell-Jeffrey-B" } ], "contributor": [ { "family_name": "Lystrup", "given_name": "Makenzie", "clpid": "Lystrup-Makenzie" }, { "family_name": "Perrin", "given_name": "Marshall D.", "clpid": "Perrin-Marshall-D" }, { "family_name": "Batalha", "given_name": "Natalie", "clpid": "Batalha-Natalie-M" }, { "family_name": "Siegler", "given_name": "Nicholas", "clpid": "Siegler-Nicholas" }, { "family_name": "Tong", "given_name": "Edward C.", "clpid": "Tong-Edward-C" } ], "abstract": "The JamesWebb Space Telescope (JWST) will probe circumstellar environments at an unprecedented sensitivity. However, the performance of high-contrast imaging instruments is limited by the residual light from the star at close separations (<2-3\"), where the incidence of exoplanets increases rapidly. There is currently no solution to get rid of the residual starlight down to the photon noise level at those separations, which may prevent some crucial discoveries. JWST's launch is planned for October 2021 with a planned baseline science mission lifetime of only five years. Thus, it is crucial to start developing a solution to this problem before its launch. We are investigating an innovative approach of post-processing built on a Bayesian framework that provides a more robust determination of faint astrophysical structures around a bright source. This approach uses a model of high-contrast imaging instrument that takes advantage of prior information, such as data from wavefront sensing (WFS) operations on JWST, to estimate simultaneously instrumental aberrations and the circumstellar environment. With this approach, our goal is to further improve the contrast gain over the contrast that can be achieved with JWST instruments, starting with NIRCam direct imaging and coronagraphic imaging. This work will pave the way for the future space-based high-contrast imaging instruments such as the Nancy Grace Roman Space Telescope_ Coronagraph Instrument (Roman CGI). This technique will be crucial to make the best use of the telemetry data that will be collected during the CGI operations.", "doi": "10.1117/12.2561628", "isbn": "9781510636736", "publisher": "Society of Photo-Optical Instrumentation Engineers (SPIE)", "place_of_publication": "Bellingham, WA", "publication_date": "2020-12-23", "pages": "Art. No. 114433N" }, { "id": "authors:6ghkg-4gd23", "collection": "authors", "collection_id": "6ghkg-4gd23", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20210104-151206059", "type": "book_section", "title": "Status of the SCExAO instrument: recent technology upgrades and path to a system-level demonstrator for PSI", "book_title": "Adaptive Optics Systems VII", "author": [ { "family_name": "Lozi", "given_name": "Julien", "orcid": "0000-0002-3047-1845", "clpid": "Lozi-Julien" }, { "family_name": "Guyon", "given_name": "Olivier", "orcid": "0000-0002-1097-9908" }, { "family_name": "Vievard", "given_name": "S\u00e9bastien", "orcid": "0000-0003-4018-2569" }, { "family_name": "Sahoo", "given_name": "Ananya", "orcid": "0000-0003-2806-1254" }, { "family_name": "Deo", "given_name": "Vincent" }, { "family_name": "Jovanovic", "given_name": "Nemanja", "orcid": "0000-0001-5213-6207", "clpid": "Jovanovic-Nemanja" }, { "family_name": "Norris", "given_name": "Barnaby", "orcid": "0000-0002-8352-7515" }, { "family_name": "Martinod", "given_name": "Marc-Antoine" }, { "family_name": "Mazin", "given_name": "Benjamin", "orcid": "0000-0003-0526-1114" }, { "family_name": "Walter", "given_name": "Alex" }, { "family_name": "Fruitwala", "given_name": "Neelay" }, { "family_name": "Steiger", "given_name": "Sarah", "orcid": "0000-0002-4787-3285" }, { "family_name": "Davis", "given_name": "Kristina K.", "orcid": "0000-0001-5587-845X" }, { "family_name": "Tuthill", "given_name": "Peter", "orcid": "0000-0001-7026-6291" }, { "family_name": "Kudo", "given_name": "Tomoyuki", "orcid": "0000-0002-9294-1793" }, { "family_name": "Kawahara", "given_name": "Hajime", "orcid": "0000-0003-3309-9134" }, { "family_name": "Kotani", "given_name": "Takayuki" }, { "family_name": "Ireland", "given_name": "Michael", "orcid": "0000-0002-6194-043X" }, { "family_name": "Anagnos", "given_name": "Theodoros" }, { "family_name": "Schwab", "given_name": "Chrstian" }, { "family_name": "Cvetojevic", "given_name": "Nick", "orcid": "0000-0002-7465-4176" }, { "family_name": "Huby", "given_name": "Elsa" }, { "family_name": "Lacour", "given_name": "Sylvestre", "orcid": "0000-0002-6948-0263" }, { "family_name": "Barjot", "given_name": "Kevin" }, { "family_name": "Groff", "given_name": "Tyler D.", "orcid": "0000-0001-5978-3247" }, { "family_name": "Chilcote", "given_name": "Jeffrey", "orcid": "0000-0001-6305-7272" }, { "family_name": "Kasdin", "given_name": "N. Jeremy", "orcid": "0000-0002-6963-7486" }, { "family_name": "Martinache", "given_name": "Frantz", "orcid": "0000-0003-1180-4138" }, { "family_name": "Laugier", "given_name": "Romain" }, { "family_name": "N'Diaye", "given_name": "Mamadou", "orcid": "0000-0002-1721-3294" }, { "family_name": "Knight", "given_name": "Justin M." }, { "family_name": "Males", "given_name": "Jared" }, { "family_name": "Bos", "given_name": "Steven P." }, { "family_name": "Snik", "given_name": "Frans", "orcid": "0000-0003-1946-7009" }, { "family_name": "Doelman", "given_name": "David S." }, { "family_name": "Miller", "given_name": "Kelsey" }, { "family_name": "Bendek", "given_name": "Eduardo", "orcid": "0000-0002-9408-8925", "clpid": "Bendek-Eduardo-A" }, { "family_name": "Belikov", "given_name": "Ruslan" }, { "family_name": "Pluzhnik", "given_name": "Eugene" }, { "family_name": "Currie", "given_name": "Thayne", "orcid": "0000-0002-7405-3119" }, { "family_name": "Kuzuhara", "given_name": "Masayuki", "orcid": "0000-0002-4677-9182" }, { "family_name": "Uyama", "given_name": "Taichi", "orcid": "0000-0002-6879-3030", "clpid": "Uyama-Taichi" }, { "family_name": "Nishikawa", "given_name": "Jun" }, { "family_name": "Murakami", "given_name": "Naoshi" }, { "family_name": "Hashimoto", "given_name": "Jun", "orcid": "0000-0002-3053-3575" }, { "family_name": "Minowa", "given_name": "Yosuke" }, { "family_name": "Clergeon", "given_name": "Christophe S." }, { "family_name": "Ono", "given_name": "Yoshito" }, { "family_name": "Takato", "given_name": "Naruhisa" }, { "family_name": "Tamura", "given_name": "Motohide", "orcid": "0000-0002-6510-0681" }, { "family_name": "Takami", "given_name": "Hideki" }, { "family_name": "Hayashi", "given_name": "Masa" } ], "contributor": [ { "family_name": "Schreiber", "given_name": "Laura", "clpid": "Schreiber-Laura" }, { "family_name": "Schmidt", "given_name": "Dirk", "clpid": "Schmidt-Dirk" }, { "family_name": "Vernet", "given_name": "Elise", "clpid": "Vernet-Elise" } ], "abstract": "The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is a high-contrast imaging system installed at the 8-m Subaru Telescope on Maunakea, Hawaii. Due to its unique evolving design, SCExAO is both an instrument open for use by the international scientific community, and a testbed validating new technologies, which are critical to future high-contrast imagers on Giant Segmented Mirror Telescopes (GSMTs). Through multiple international collaborations over the years, SCExAO was able to test the most advanced technologies in wavefront sensors, real-time control with GPUs, low-noise high frame rate detectors in the visible and infrared, starlight suppression techniques or photonics technologies. Tools and interfaces were put in place to encourage collaborators to implement their own hardware and algorithms, and test them on-site or remotely, in laboratory conditions or on-sky. We are now commissioning broadband coronagraphs, the Microwave Kinetic Inductance Detector (MKID) Exoplanet Camera (MEC) for high-speed speckle control, as well as a C-RED ONE camera for both polarization differential imaging and IR wavefront sensing. New wavefront control algorithms are also being tested, such as predictive control, multi-camera machine learning sensor fusion, and focal plane wavefront control. We present the status of the SCExAO instrument, with an emphasis on current collaborations and recent technology demonstrations. We also describe upgrades planned for the next few years, which will evolve SCExAO \u2014and the whole suite of instruments on the IR Nasmyth platform of the Subaru Telescope\u2014 to become a system-level demonstrator of the Planetary Systems Imager (PSI), the high-contrast instrument for the Thirty Meter Telescope (TMT).", "doi": "10.1117/12.2562832", "isbn": "9781510636835", "publisher": "Society of Photo-Optical Instrumentation Engineers (SPIE)", "place_of_publication": "Bellingham, WA", "publication_date": "2020-12-13", "pages": "Art. No. 114480N" } ]