R
Radwan Tajeddine
Researcher at Cornell University
Publications - 18
Citations - 792
Radwan Tajeddine is an academic researcher from Cornell University. The author has contributed to research in topics: Saturn & Enceladus. The author has an hindex of 11, co-authored 18 publications receiving 611 citations. Previous affiliations of Radwan Tajeddine include PSL Research University & Paris Diderot University.
Papers
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Journal ArticleDOI
Enceladus's measured physical libration requires a global subsurface ocean
Peter C. Thomas,Radwan Tajeddine,Matthew S. Tiscareno,Matthew S. Tiscareno,Joseph A. Burns,J. Joseph,Thomas J. Loredo,Paul Helfenstein,Carolyn C. Porco +8 more
TL;DR: In this paper, the authors used measurements of control points across the surface of Enceladus accumulated over seven years of spacecraft observations to determine the satellite's precise rotation state, finding a forced physical libration of 0.120 ± 0.014° (2σ).
Journal ArticleDOI
New constraints on Saturn’s interior from Cassini astrometric data
Valéry Lainey,Robert A. Jacobson,Radwan Tajeddine,Radwan Tajeddine,Nicholas J. Cooper,Nicholas J. Cooper,Carl D. Murray,V. Robert,Gabriel Tobie,Tristan Guillot,Stéphane Mathis,Françoise Remus,Françoise Remus,Françoise Remus,Josselin Desmars,J. E. Arlot,Jean-Pierre De Cuyper,Véronique Dehant,Dan Pascu,William Thuillot,Christophe Le Poncin-Lafitte,Jean-Paul Zahn +21 more
TL;DR: In this article, the authors determined the Love number of the entire planet from observations, k2=0.390 ± 0.024, a value larger than the commonly used theoretical value of 0.341, but compatible with more recent models (Helled & Guillot, 2013) for which the static k2 ranges from 0.355 to 0.382.
Journal ArticleDOI
Constraints on Mimas' interior from Cassini ISS libration measurements.
Radwan Tajeddine,Radwan Tajeddine,Radwan Tajeddine,Nicolas Rambaux,Nicolas Rambaux,V. Lainey,Sébastien Charnoz,A. Richard,Attilio Rivoldini,Benoît Noyelles +9 more
TL;DR: The precise difference between rotational and orbital periods suggests an unexpected interior for one of Saturn’s moons, and it is argued that the satellite has either a large nonhydrostatic interior, or a hydrostatic one with an internal ocean beneath a thick icy shell.
Journal ArticleDOI
True polar wander of Enceladus from topographic data
Radwan Tajeddine,Krista M. Soderlund,Peter C. Thomas,Paul Helfenstein,Matthew M. Hedman,Joseph A. Burns,Paul M. Schenk +6 more
TL;DR: In this article, the discovery of a global series of topographic lows on Saturn's satellite Enceladus that they interpret to show that this synchronously locked moon has undergone True Polar Wander (TPW) by ∼55° about the tidal axis.
Book ChapterDOI
The Interior of Enceladus
TL;DR: The internal structure of a planetary body provides essential clues about its origin and evolution as mentioned in this paper, and the structure of the near surface and deeper interior tell us about the nature of the topography and the distribution of geologic provinces across the surface.