W
W. M. Folkner
Researcher at California Institute of Technology
Publications - 15
Citations - 641
W. M. Folkner is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Jupiter & Gravitational field. The author has an hindex of 6, co-authored 15 publications receiving 490 citations.
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Journal ArticleDOI
A suppression of differential rotation in Jupiter’s deep interior
Tristan Guillot,Yamila Miguel,Yamila Miguel,Burkhard Militzer,William B. Hubbard,Yohai Kaspi,Eli Galanti,Hao Cao,Hao Cao,Ravit Helled,S. M. Wahl,Luciano Iess,W. M. Folkner,D. J. Stevenson,Jonathan I. Lunine,Daniel R. Reese,A. Biekman,Marzia Parisi,Daniele Durante,John E. P. Connerney,Steven Levin,Scott Bolton +21 more
TL;DR: It is found that the deep interior of the planet rotates nearly as a rigid body, with differential rotation decreasing by at least an order of magnitude compared to the atmosphere, making it fully consistent with the constraints obtained independently from the odd gravitational harmonics.
Journal ArticleDOI
Measurement of Jupiter’s asymmetric gravity field
Luciano Iess,W. M. Folkner,Daniele Durante,Marzia Parisi,Yohai Kaspi,Eli Galanti,Tristan Guillot,William B. Hubbard,D. J. Stevenson,John D. Anderson,Dustin Buccino,L. Gomez Casajus,Andrea Milani,Ryan S. Park,P. Racioppa,Daniele Serra,Paolo Tortora,Marco Zannoni,Hao Cao,Ravit Helled,Jonathan I. Lunine,Yamila Miguel,Burkhard Militzer,S. M. Wahl,John E. P. Connerney,Steven Levin,Scott Bolton +26 more
TL;DR: Measurements of Jupiter’s gravity harmonics are reported through precise Doppler tracking of the Juno spacecraft in its polar orbit around Jupiter, finding a north–south asymmetry, which is a signature of atmospheric and interior flows.
Journal ArticleDOI
Constraints on modified Newtonian dynamics theories from radio tracking data of the Cassini spacecraft
TL;DR: The modified Newtonian dynamics (MOND) is an attempt to modify the gravitation theory to solve the dark matter problem as discussed by the authors, and the main effect produced by MOND in the Solar System is called the external field effect parametrized by the parameter ${Q}_{2}$.
Journal ArticleDOI
Jupiter gravity field estimated from the first two Juno orbits
W. M. Folkner,Luciano Iess,J. D. Anderson,Sami W. Asmar,Dustin Buccino,Daniele Durante,Michael Feldman,L. Gomez Casajus,M. Gregnanin,Andrea Milani,Marzia Parisi,Ryan S. Park,Daniele Serra,Giacomo Tommei,Paolo Tortora,Marco Zannoni,Scott Bolton,John E. P. Connerney,Steven Levin +18 more
TL;DR: The combination of the Doppler data from the first two Juno science orbits provides an improved estimate of the gravity field of Jupiter, crucial for interior modeling of giant planets as mentioned in this paper.