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The Planet as Exoplanet Analog Spectrograph (PEAS): design and first-light

Martin, Emily C. and Skemer, Andrew J. and Radovan, Matthew V. and Allen, Steven L. and Black, David and Deich, William T. S. and Fortney, Jonathan J. and Kruglikov, Gabriel and MacDonald, Nicholas and Marques, David and Morris, Evan C. and Phillips, Andrew C. and Sandford, Dale and Valencia, Julissa Villalobos and Wang, Jason J. and Zachary, Pavl (2020) The Planet as Exoplanet Analog Spectrograph (PEAS): design and first-light. In: Ground-based and Airborne Instrumentation for Astronomy VIII. Proceedings of SPIE. No.11447. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 114470T. ISBN 9781510636811.

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Exoplanets are abundant in our galaxy and yet characterizing them remains a technical challenge. Solar System planets provide an opportunity to test the practical limitations of exoplanet observations with high signal-to-noise data that we cannot access for exoplanets. However, data on Solar System planets differ from exoplanets in that Solar System planets are spatially resolved while exoplanets are unresolved point-sources. We present a novel instrument designed to observe Solar System planets as though they are exoplanets, the Planet as Exoplanet Analog Spectrograph (PEAS). PEAS consists of a dedicated 0.5-m telescope and off-the-shelf optics, located at Lick Observatory. PEAS uses an integrating sphere to disk-integrate light from the Solar System planets, producing spatially mixed light more similar to the spectra we can obtain from exoplanets. This paper describes the general system design and early results of the PEAS instrument.

Item Type:Book Section
Related URLs:
URLURL TypeDescription Paper
Martin, Emily C.0000-0002-0618-5128
Skemer, Andrew J.0000-0001-6098-3924
Fortney, Jonathan J.0000-0002-9843-4354
Wang, Jason J.0000-0003-0774-6502
Additional Information:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). PEAS is supported by the Heising Simons Foundation (Grant # 2019-1681). ECM acknowledges support from NSF Astronomy and Astrophysics Postdoctoral Fellowship under award AST-1801978.
Funding AgencyGrant Number
Heising Simons Foundation2019-1681
NSF Astronomy and Astrophysics FellowshipAST-1801978
Subject Keywords:Exoplanet instrumentation, Solar System instrumentation, off-the-shelf optics, spectrograph, Lick Observatory
Series Name:Proceedings of SPIE
Issue or Number:11447
Record Number:CaltechAUTHORS:20201217-124457843
Persistent URL:
Official Citation:Emily C. Martin, Andrew J. Skemer, Matthew V. Radovan, Steven L. Allen, David Black, William T. S. Deich, Jonathan J. Fortney, Gabriel Kruglikov, Nicholas MacDonald, David Marques, Evan C. Morris, Andrew C. Phillips, Dale Sandford, Julissa Villalobos Valencia, Jason J. Wang, and Pavl Zachary "The Planet as Exoplanet Analog Spectrograph (PEAS): design and first-light", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114470T (15 December 2020);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107156
Deposited By: Tony Diaz
Deposited On:17 Dec 2020 21:08
Last Modified:16 Nov 2021 19:00

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