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High-contrast spectroscopy testbed for Segmented Telescopes: instrument overview and development progress

Jovanovic, N. and Ruane, G. and Echeverri, D. and Delorme, J. R. and Mawet, D. and Fucik, J. and Wallace, J. K. and Coker, C. and Delacroix, A. and Levraud, N. and Llop Sayson, Jorge and Wang, J. and Riddle, R. and Millar-Blanchaer, M. A. (2018) High-contrast spectroscopy testbed for Segmented Telescopes: instrument overview and development progress. In: Ground-based and Airborne Instrumentation for Astronomy VII. Proceedings of SPIE. No.10702. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 107024E. ISBN 9781510619579.

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The High Contrast spectroscopy testbed for Segmented Telescopes (HCST) is being developed at Caltech. It aims at addressing the technology gap for future exoplanet imagers and providing the U.S. community with an academic facility to test components and techniques for high contrast imaging, focusing on segmented apertures proposed for future ground-based (TMT, ELT) and space-based telescopes (HabEx, LUVOIR). We present an overview of the design of the instrument and a detailed look at the testbed build and initial alignment. We offer insights into stumbling blocks encountered along the path and show that the testbed is now operational and open for business. We aim to use the testbed in the future for testing of high contrast imaging techniques and technologies with amongst with thing, a TMT-like pupil.

Item Type:Book Section
Related URLs:
URLURL TypeDescription Paper
Ruane, G.0000-0003-4769-1665
Echeverri, D.0000-0002-1583-2040
Mawet, D.0000-0002-8895-4735
Coker, C.0000-0002-9954-7887
Wang, J.0000-0002-4361-8885
Riddle, R.0000-0002-0387-370X
Millar-Blanchaer, M. A.0000-0001-6205-9233
Additional Information:© 2018 Society of Photo-optical Instrumentation Engineers (SPIE). The authors would like to acknowledge the financial support of the Heising-Simons foundation. G. Ruane is supported by an NSF Astronomy and Astrophysics Postdoctoral Fellowship under award AST-1602444. This work was also supported by the Exoplanet Exploration Program (ExEP), Jet Propulsion Laboratory, California Institute of Technology, under contract to NASA.
Group:Astronomy Department
Funding AgencyGrant Number
Heising-Simons FoundationUNSPECIFIED
NSF Astronomy and Astrophysics FellowshipAST-1602444
Subject Keywords:Wavefront sensing, common path wavefront sensing, coherent differential imaging, high contrast imaging, exoplanets
Series Name:Proceedings of SPIE
Issue or Number:10702
Record Number:CaltechAUTHORS:20180723-151740832
Persistent URL:
Official Citation:N. Jovanovic, G. Ruane, D. Echeverri, J. R. Delorme, D. Mawet, J. Fucik, J. K. Wallace, C. Coker, A. Delacroix, N. Levraud, J. D. Llop Sayson, J. Wang, R. Riddle, M. A. Millar-Blanchaer, "High-contrast spectroscopy testbed for Segmented Telescopes: instrument overview and development progress ," Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107024E (9 July 2018); doi: 10.1117/12.2314325
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88138
Deposited By: Joy Painter
Deposited On:24 Jul 2018 14:57
Last Modified:09 Mar 2020 13:19

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