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TOPS: a small space telescope using phase induced-amplitude apodization (PIAA) to image rocky and giant exo-planets

Guyon, Olivier and Angel, James R. P. and Bowers, Charles and Burge, James and Burrows, Adam and Codona, Johanan and Greene, Thomas and Iye, Masanori and Kasting, James and Martin, Hubert and McCarthy, Donald W., Jr. and Meadows, Victoria and Meyer, Michael and Pluzhnik, Eugene A. and Sleep, Norman and Tamura, Motohide and Tenerelli, Domenick and Vanderbei, Robert and Woodgate, Bruce and Woodruff, Robert A. and Woolf, Neville J. (2007) TOPS: a small space telescope using phase induced-amplitude apodization (PIAA) to image rocky and giant exo-planets. In: Techniques and Instrumentation for Detection of Exoplanets III. Proceedings of SPIE. No.6693. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 66930J. ISBN 9780819468413.

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The Telescope to Observe Planetary Systems (TOPS) is a proposed space mission to image planetary systems of nearby stars simultaneously in a few wide spectral bands covering the visible light (0.4-0.9 μm). It achieves its power by combining a high accuracy wavefront control system with a highly efficient Phase-Induced Amplitude Apodization (PIAA) coronagraph which provides strong suppression very close to the star (within 2 λ/D). The PIAA coronagraphic technique opens the possibility of imaging Earthlike planets in visible light with a smaller telescope than previously supposed. If sized at 1.2-m, TOPS would image and characterize many Jupiter-sized planets, and discover 2 RE rocky planets within habitable zones of the ≈10 most favorable stars. With a larger 2-m aperture, TOPS would have the sensitivity to reveal Earth-like planets in the habitable zone around ≈20 stars, and to characterize any found with low resolution spectroscopy. Unless the occurrence of Earth-like planets is very low (η⊕ <~ 0.2), a useful fraction of the TPF-C scientific program would be possible with aperture much smaller than the baselined 8 by 3.5m for TPF, with its more conventional coronagraph. An ongoing laboratory experiment has successfully demonstrated high contrast coronagraphic imaging within 2 λ/d with the PIAA coronagraph / focal plane wavefront sensing scheme envisioned for TOPS.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Guyon, Olivier0000-0002-1097-9908
Burrows, Adam0000-0002-3099-5024
Greene, Thomas0000-0002-8963-8056
Meyer, Michael0000-0003-1227-3084
Tamura, Motohide0000-0002-6510-0681
Additional Information:© 2007 Society of Photo-Optical Instrumentation Engineers (SPIE). Concept development for TOPS has been supported at Arizona by NASA under Terrestrial Planet Finder Instrument Concept Study grant NNG05GO57G. Development of the PIAA coronagraph and focal plane wavefront control techniques is supported by the National Astronomical Observatory of Japan and JPL contract numbers 1254445 and 1257767 for Development of Technologies for the Terrestrial Planet Finder Mission.
Funding AgencyGrant Number
National Astronomical Observatory of JapanUNSPECIFIED
Subject Keywords:Coronagraphy, Adaptive Optics, Space Telescopes, Exoplanets
Series Name:Proceedings of SPIE
Issue or Number:6693
Record Number:CaltechAUTHORS:20191104-134416252
Persistent URL:
Official Citation:Olivier Guyon, James R. P. Angel, Charles Bowers, James Burge, Adam Burrows, Johanan Codona, Thomas Greene, Masanori Iye, James Kasting, Hubert Martin, Donald W. McCarthy Jr., Victoria Meadows, Michael Meyer, Eugene A. Pluzhnik, Norman Sleep, Motohide Tamura, Domenick Tenerelli, Robert Vanderbei, Bruce Woodgate, Robert A. Woodruff, and Neville J. Woolf "TOPS: a small space telescope using phase induced-amplitude apodization (PIAA) to image rocky and giant exo-planets", Proc. SPIE 6693, Techniques and Instrumentation for Detection of Exoplanets III, 66930J (19 September 2007);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99656
Deposited By: Tony Diaz
Deposited On:04 Nov 2019 21:56
Last Modified:04 Nov 2019 21:56

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