Exoplanets and Stellar Physics

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HARMONI pre-optics design at PDR

SPIE, the international society for optics and photonics 10702 (2018) 107029h

Authors:

MA Cagigas, E Hernandez, JL Rasilla, E Mediavilla, B García-Lorenzo, JM Herreros, JV Gigante, LF Rodriguez, I Bryson, M Schnedtler, F Clarke, M Tecza, N Thatte
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MICHI: a thermal-infrared instrument for the TMT

SPIE, the international society for optics and photonics 10702 (2018) 10702a0

Authors:

Chris Packham, Mitsuhiko Honda, Mark Chun, Itsuki Sakon, Matthew Richter, Yoshiko Okamoto, Hirokazu Kataza, Christian Marois, Michael Meyer, Manoj Puravankara, Jayne Birkby, Ian Crossfield, Thayne Curry, Thomas Greathouse, Gregory Herczeg, Kohei Ichikawa, Hanae Inami, Masatoshi Imanishi, Enrique Lopez-Rodriguez
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The HARMONI/ELT spectrographs

SPIE, the international society for optics and photonics 10702 (2018) 107029m

Authors:

Myriam Arnal Rodrigues, John Capone, Andrew Earle, Tom Foster, A Hidalgo, I Lewis, J Lynn, K O'brien, I Tosh, EM George, M Accardo, D Alvarez, R Conzelmann, J Hopgood, F Clarke, H Schnetler, M Tecza, N Thatte
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Analysis and mitigation of pupil discontinuities on adaptive optics performance

SPIE, the international society for optics and photonics 10703 (2018) 1070322

Authors:

Noah Schwartz, Jean-François Sauvage, Carlos Correia, Benoit Neichel, Thierry Fusco, Fernando Quiros-Pacheco, Kjetil Dohlen, Kacem El Hadi, Guido Agapito, Niranjan Thatte, Fraser Clarke
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Building the HARMONI engineering model

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers 10702 (2018)

Authors:

T Foster, John Capone, A Earle, A Hidalgo, I Lewis, J Lynn, K O'Brien, M Rodrigues, I Tosh, B Watkins, F Clarke, H Schnetler, Matthias Tecza, Niranjan Thatte

Abstract:

HARMONI (High Angular Resolution MOnolithic Integral field spectrograph)1 is a planned first-light integral field spectrograph for the Extremely Large Telescope. The spectrograph sub-system is being designed, developed, and built by the University of Oxford. The project has just completed the Preliminary Design Review (PDR), with all major systems having nearly reached a final conceptual design. As part of the overall prototyping and assembly, integration, and testing (AIT) of the HARMONI spectrograph, we will be building a full-scale engineering model of the spectrograph. This will include all of the moving and mechanical systems, but without optics. Its main purpose is to confirm the AIT tasks before the availability of the optics, and the system will be tested at HARMONI cryogenic temperatures. By the time of the construction of the engineering model, all of the individual modules and mechanisms of the spectrograph will have been prototyped and cryogenically tested. The lessons learned from the engineering model will then be fed back into the overall design of the spectrograph modules ahead of their development.
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