P23A:
The Interiors of Jupiter and Saturn in the Era of Juno and Cassini I


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Session ID#: 60248

Session Description:
The ongoing Juno mission and the recently concluded Cassini mission have provided a wealth of new measurements (e.g. gravity field, magnetic field, composition, seismic waves) revealing key aspects of the interiors of Jupiter and Saturn for the first time. Examining these new measurements from both planets, separating common themes from specific expressions, is a critical step towards a coherent understanding of the formation, evolution, and interior dynamics of giant planets in the solar system and beyond. This session will bring together observation and interpretation of gravity field, magnetic field, composition, seismic waves at Jupiter and Saturn. Topics will include depth of strong differential rotation (zonal flows), helium and heavy element abundance, generation of intrinsic magnetic field, existence and properties of the central core, seismic, thermal, and magnetic consequences of stable stratification, as well as formation scenarios and evolution pathways.
Primary Convener:  David J Stevenson, California Institute of Technology, Pasadena, United States
Conveners:  Hao Cao, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States; University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, Scott J Bolton, Southwest Research Institute, San Antonio, United States and Luciano Iess, Sapienza University of Rome, Rome, Italy
Primary Liaison:  David J Stevenson, California Institute of Technology, Pasadena, United States
Chairs:  David J Stevenson, California Institute of Technology, Pasadena, United States and Hao Cao, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States
OSPA Liaison:  David J Stevenson, California Institute of Technology, Pasadena, United States

Cross-Listed:
  • G - Geodesy
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
Index Terms:

1221 Lunar and planetary geodesy and gravity [GEODESY AND GRAVITY]
1510 Dynamo: theories and simulations [GEOMAGNETISM AND PALEOMAGNETISM]
5724 Interiors [PLANETARY SCIENCES: FLUID PLANETS]
5749 Origin and evolution [PLANETARY SCIENCES: FLUID PLANETS]

Abstracts Submitted to this Session:

Implications from Cassini Ion Neutral Mass Spectrometer (INMS) Grand Finale Measurements on Atmospheric and Interior Processes at Saturn (368081)
Jack H Waite1, Jared Micheal Bell2, Kelly Miller3, Rebecca Perryman3, Christopher R. Glein4 and Jonathan I Lunine5, (1)University of Alabama, Tuscaloosa, United States, (2)NASA Goddard Space Flight Center, Code 675, Greenbelt, MD, United States, (3)Southwest Research Institute, San Antonio, United States, (4)Southwest Research Institute San Antonio, Space Sciences and Engineering, San Antonio, TX, United States, (5)Cornell University, Department of Astronomy, Ithaca, NY, United States
Saturn’s Gravity Field Determination from Cassini Grand Finale and Implications on its Internal Structure (429607)
Paolo Racioppa1, Daniele Durante2, Luciano Iess2, Burkhard Militzer3, Yohai Kaspi4, Phil d Nicholson5, William B Hubbard6, Eli Galanti4 and Sean M Wahl7, (1)Sapienza University of Rome, Department of Mechanical and Aerospace Engineering, Rome, Italy, (2)Sapienza University of Rome, Rome, Italy, (3)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (4)Weizmann Institute of Science, Earth and Planetary Sciences, Rehovot, Israel, (5)Cornell University, Dept. of Astronomy, Ithaca, United States, (6)University of Arizona, Tucson, AZ, United States, (7)University of California, Berkeley, Berkeley, CA, United States
Cassini Ring Seismology as a Probe of Saturn's Rotation (Invited) (350384)
Christopher Mankovich, University of California Santa Cruz, Santa Cruz, United States, Mark S Marley, NASA Ames Research Center, Moffett Field, CA, United States, Jonathan J Fortney, University of California Santa Cruz, Astronomy and Astrophysics, Santa Cruz, United States and Naor Movshovitz, UCSC, Santa Cruz, CA, United States
The gravity field of Jupiter after two years of Juno mission (414755)
Marzia Parisi1, Daniele Durante2, William M Folkner3, Luciano Iess2, John D Anderson4, Dustin Buccino1, Michael Feldman5, Luis Gomez Casajus6, Giacomo Lari7, Andrea Milani7, Virginia Notaro2, Ryan S Park8, Paolo Racioppa9, Daniele Serra7, Giacomo Tommei10, Paolo Tortora6 and Marco Zannoni6, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (2)Sapienza University of Rome, Rome, Italy, (3)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (4)Southwest Research Institute, San Antonio, United States, (5)Southwest Research Institute, San Antonio, TX, United States, (6)University of Bologna, Department of Industrial Engineering, Forlì, Italy, (7)University of Pisa, Pisa, Italy, (8)NASA Jet Propulsion Laboratory, La Cañada Flintridge, United States, (9)Sapienza University of Rome, Department of Mechanical and Aerospace Engineering, Rome, Italy, (10)University of Pisa, Department of Mathematics, Pisa, Italy
Interior Models that Explain the Gravity Fields of Saturn and Jupiter (428767)
Burkhard Militzer, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, Sean M Wahl, University of California, Berkeley, Berkeley, CA, United States, William B Hubbard, University of Arizona, Tucson, AZ, United States, Luciano Iess, Sapienza University of Rome, Rome, Italy, Jonathan J Fortney, University of California Santa Cruz, Astronomy and Astrophysics, Santa Cruz, United States and Linda Joyce Spilker, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Contributions to Jupiter’s gravity field from dynamics in the deep dynamo, semiconducting layer, and nonconducting atmosphere (396950)
Laura Kulowski1, Hao Cao1, Jeremy Bloxham1, Marzia Parisi2, Cheng Li3 and David J Stevenson4, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)California Institute of Technology, Pasadena, CA, United States, (4)California Institute of Technology, Pasadena, United States
Juno Magnetometer Observations of Jupiter’s Magnetic Field and Magnetosphere (391755)
John E P Connerney1,2, Ronald J Oliversen2, Jared R Espley3, Daniel J Gershman3, Jacob Gruesbeck3, Stavros Kotsiaros2, Gina A DiBraccio2, John Leif Joergensen4, Peter S Joergensen5, Jose M.G. Merayo6, Troelz Denver7, Mathias Benn4, Anastassia Malinnikova Bang8, Jeremy Bloxham9, Kimberly Moore9, Scott J Bolton10 and Steven Levin11, (1)Space Research Corporation, Annapolis, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)NASA Goddard Space Flight Center, Greenbelt, United States, (4)Technical University of Denmark, DTU Space, Lyngby, Denmark, (5)DTU Space, National Space Institute, Technical University of Denmark, Kgs Lyngby, Denmark, (6)DTU Space, Lyngby, Denmark, (7)Technical University of Denmark, DTU Space, Kgs. Lyngby, Denmark, (8)Technical University of Denmark - Space, Lyngby, Denmark, (9)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (10)Southwest Research Institute, San Antonio, United States, (11)Jet Propulsion Laboratory, Pasadena, United States
Secular variation of Jupiter’s magnetic field (413933)
Kimberly Moore1, Hao Cao2, Jeremy Bloxham1, David J Stevenson3 and John E P Connerney4, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (3)California Institute of Technology, Pasadena, United States, (4)Space Research Corporation, Annapolis, United States
The possible mechanisms controlling the deep jets on Jupiter and Saturn in light of the Juno and Cassini gravity measurements (439118)
Yohai Kaspi1, Eli Galanti1, Luciano Iess2 and Daniele Durante2, (1)Weizmann Institute of Science, Earth and Planetary Sciences, Rehovot, Israel, (2)Sapienza University of Rome, Rome, Italy

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