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Magnetic Fields of Extrasolar Planets: Planetary Interiors and Habitability

Lazio, Joseph and Hallinan, G. and Airapetian, V. and Brain, D. A. and Clarke, T. E. and Dolch, T. and Dong, C. F. and Driscoll, P. E. and Fares, R. and Griessmeier, J.-M. and Farrell, W. M. and Kasper, J. C. and Murphy, T. and Rogers, L. A. and Shkolnik, E. and Stanley, S. and Strugarek, A. and Turner, N. J. and Wolszczan, A. and Zarka, P. and Knapp, M. and Lynch, C. R. and Turner, J. D. (2018) Magnetic Fields of Extrasolar Planets: Planetary Interiors and Habitability. Astro2020 Science White Paper, . (Submitted)

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Jupiter's radio emission has been linked to its planetary-scale magnetic field, and spacecraft investigations have revealed that most planets, and some moons, have or had a global magnetic field. Generated by internal dynamos, magnetic fields are one of the few remote sensing means of constraining the properties of planetary interiors. For the Earth, its magnetic field has been speculated to be partially responsible for its habitability, and knowledge of an extrasolar planet's magnetic field may be necessary to assess its habitability. The radio emission from Jupiter and other solar system planets is produced by an electron cyclotron maser, and detections of extrasolar planetary electron cyclotron masers will enable measurements of extrasolar planetary magnetic fields. This white paper draws heavily on the W. M. Keck Institute for Space Studies report Planetary Magnetic Fields: Planetary Interiors and Habitability (Lazio, Shkolnik, Hallinan, et al.), it incorporates topics discussed at the American Astronomical Society Topical Conference "Radio Exploration of Planetary Habitability," it complements the Astrobiology Science Strategy white paper "Life Beyond the Solar System: Space Weather and Its Impact on Habitable Worlds" (Airapetian et al.), and it addresses aspects of planetary magnetic fields discussed in the NASA Astrobiology Strategy.

Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription Paper
Lazio, Joseph0000-0002-3873-5497
Hallinan, G.0000-0002-7083-4049
Kasper, J. C.0000-0002-7077-930X
Murphy, T.0000-0002-2686-438X
Rogers, L. A.0000-0003-0638-3455
Shkolnik, E.0000-0002-7260-5821
Stanley, S.0000-0002-4039-2809
Turner, N. J.0000-0001-8292-1943
Additional Information:A white paper submitted to the National Academy of Science Committee on Exoplanet Science Strategy.
Group:Keck Institute for Space Studies
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20190403-130206892
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94409
Deposited By: Tony Diaz
Deposited On:03 Apr 2019 22:47
Last Modified:01 Oct 2020 17:00

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