485 citations · 2.1k across the 37 of their papers we have counts for
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Cassini UVIS Observations of the Io Plasma Torus. IV. Modeling Temporal and Azimuthal Variability
A. J. Steffl, P. A. Delamere, F. Bagenal
In this fourth paper in a series, we present a model of the remarkable temporal and azimuthal variability of the Io plasma torus observed during the Cassini encounter with Jupiter.…
Ultraviolet Spectroscopy of Comet 9P/Tempel 1 with Alice/Rosetta during the Deep Impact Encounter
Paul D. Feldman, S. Alan Stern, Andrew J. Steffl +5
We report on spectroscopic observations of periodic comet 9P/Tempel 1 by the Alice ultraviolet spectrograph on the Rosetta spacecraft in conjunction with NASA's Deep Impact mission…
First Constraints on Rings in the Pluto System
A. J. Steffl, S. A. Stern
Simple theoretical calculations have suggested that small body impacts onto Pluto's newly discovered small satellites, Nix and Hydra, are capable of generating time-variable rings…
The Positions, Colors, and Photometric Variability of Pluto's Small Satellites from HST Observations 2005-2006
S. A. Stern, M. J. Mutchler, H. A. Weaver +1
Pluto's two small satellites, temporarily designated S/2005 P 1 and S/2005 P 2, were observed on four dates (15.1 and 18.1 May 2005, 15.7 February 2006, and 2.8 March 2006) using t…
The Discovery of Two New Satellites of Pluto
H. A. Weaver, S. A. Stern, M. J. Mutchler +6
Pluto's first known moon, Charon, was discovered in 1978 (Christy 1978) and has a diameter about half that of Pluto (Buie 1992,Young 1994, Sicardy 2005), which makes it larger rela…
Characteristics and Origin of the Quadruple System at Pluto
S. A. Stern, H. A. Weaver, A. J. Steffl +6
Our discovery of two new satellites of Pluto, designated S/2005 P 1 and S/2005 P 2 (henceforth, P1 and P2), combined with the constraints on the absence of more distant satellites…