SCExAO, an instrument with a dual purpose: perform cutting-edge science and develop new technologies
Julien Lozi
(1)
,
Olivier Guyon
(1, 2, 3)
,
Nemanja Jovanovic
(4)
,
Sean Goebel
(1, 5)
,
Prashant Pathak
(1, 6)
,
Nour Skaf
(1)
,
Ananya Sahoo
(1, 6)
,
Barnaby Norris
(7)
,
Frantz Martinache
(8)
,
Mamadou N'Diaye
(8)
,
Ben Mazin
(9)
,
Alex Walter
(9)
,
Peter Tuthill
(7)
,
Tomoyuki Kudo
(1)
,
Hajime Kawahara
(10)
,
Takayuki Kotani
(11)
,
Michael Ireland
(12)
,
Nick Cvetojevic
(13)
,
Elsa Huby
(13)
,
Sylvestre Lacour
(13)
,
Sebastien Vievard
(1, 3, 13)
,
Tyler Groff
(14)
,
Jeffrey Chilcote
(15)
,
Jeremy Kasdin
(16)
,
Justin Knight
(2)
,
Frans Snik
(17)
,
David Doelman
(17)
,
Yosuke Minowa
(1)
,
Christophe Clergeon
(1)
,
Naruhisa Takato
(1)
,
Motohide Tamura
(11)
,
Thayne Currie
(1)
,
Hideki Takami
(11)
,
Masa Hayashi
(11)
1
Subaru Telescope
2 Wyant College of Optical Sciences [University of Arizona]
3 NINS - National Institutes of Natural Sciences [Tokyo]
4 CALTECH - California Institute of Technology
5 Institute for astronomy [Hilo, Hawaï]
6 SOKENDAI - Graduate University for Advanced Studies [Hayama]
7 Macquarie University
8 LAGRANGE - Joseph Louis LAGRANGE
9 UC Santa Barbara - University of California [Santa Barbara]
10 UTokyo - The University of Tokyo
11 NAOJ - National Astronomical Observatory of Japan
12 ANU - Australian National University
13 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
14 GSFC - NASA Goddard Space Flight Center
15 Stanford University
16 Princeton University
17 Leiden Observatory [Leiden]
2 Wyant College of Optical Sciences [University of Arizona]
3 NINS - National Institutes of Natural Sciences [Tokyo]
4 CALTECH - California Institute of Technology
5 Institute for astronomy [Hilo, Hawaï]
6 SOKENDAI - Graduate University for Advanced Studies [Hayama]
7 Macquarie University
8 LAGRANGE - Joseph Louis LAGRANGE
9 UC Santa Barbara - University of California [Santa Barbara]
10 UTokyo - The University of Tokyo
11 NAOJ - National Astronomical Observatory of Japan
12 ANU - Australian National University
13 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
14 GSFC - NASA Goddard Space Flight Center
15 Stanford University
16 Princeton University
17 Leiden Observatory [Leiden]
Olivier Guyon
- Fonction : Auteur
- PersonId : 3425
- IdHAL : olivier-guyon
- IdRef : 14827160X
Nemanja Jovanovic
- Fonction : Auteur
- PersonId : 795774
- ORCID : 0000-0001-5213-6207
Prashant Pathak
- Fonction : Auteur
Ananya Sahoo
- Fonction : Auteur
- PersonId : 797287
- ORCID : 0000-0003-2806-1254
Frantz Martinache
- Fonction : Auteur
- PersonId : 176150
- IdHAL : frantzmartinache
- ORCID : 0000-0003-1180-4138
Mamadou N'Diaye
- Fonction : Auteur
- PersonId : 179405
- IdHAL : astromam
- ORCID : 0000-0002-1721-3294
Elsa Huby
- Fonction : Auteur
- PersonId : 953209
Sylvestre Lacour
- Fonction : Auteur
- PersonId : 739267
- IdHAL : sylvestre-lacour
- ORCID : 0000-0002-6948-0263
- IdRef : 129379085
Sebastien Vievard
- Fonction : Auteur
- PersonId : 1027163
Tyler Groff
- Fonction : Auteur
- PersonId : 794968
- ORCID : 0000-0001-5978-3247
Jeffrey Chilcote
- Fonction : Auteur
- PersonId : 785587
- ORCID : 0000-0001-6305-7272
Frans Snik
- Fonction : Auteur
- PersonId : 791170
- ORCID : 0000-0003-1946-7009
Motohide Tamura
- Fonction : Auteur
- PersonId : 760531
- ORCID : 0000-0002-6510-0681
Résumé
The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument is an extremely modular high-contrast instrument installed on the Subaru telescope in Hawaii. SCExAO has a dual purpose. Its position in the northern hemisphere on a 8-meter telescope makes it a prime instrument for the detection and characterization of exoplanets and stellar environments over a large portion of the sky. In addition, SCExAO's unique design makes it the ideal instrument to test innovative technologies and algorithms quickly in a laboratory setup and subsequently deploy them on-sky. SCExAO benefits from a first stage of wavefront correction with the facility adaptive optics AO188, and splits the 600-2400 nm spectrum towards a variety of modules, in visible and near infrared, optimized for a large range of science cases. The integral field spectrograph CHARIS, with its J, H or K-band high-resolution mode or its broadband low-resolution mode, makes SCExAO a prime instrument for exoplanet detection and characterization. Here we report on the recent developments and scientific results of the SCExAO instrument. Recent upgrades were performed on a number of modules, like the visible polarimetric module VAMPIRES, the high-performance infrared coronagraphs, various wavefront control algorithms, as well as the real-time controller of AO188. The newest addition is the 20k-pixel Microwave Kinetic Inductance Detector (MKIDS) Exoplanet Camera (MEC) that will allow for previously unexplored science and technology developments. MEC, coupled with novel photon-counting speckle control, brings SCExAO closer to the final design of future high-contrast instruments optimized for Giant Segmented Mirror Telescopes (GSMTs).