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The Pluto System After New Horizons
S. Alan Stern, William Grundy, William B. McKinnon +2
The discovery of Pluto in 1930 presaged the discoveries of both the Kuiper Belt and ice dwarf planets, which are the third class of planets in our solar system. From the 1970s to t…
FUV Spectral Signatures of Molecules and the Evolution of the Gaseous Coma of Comet 67P/Churyumov-Gerasimenko
Paul D. Feldman, Michael F. A'Hearn, Jean-Loup Bertaux +10
The Alice far-ultraviolet imaging spectrograph onboard Rosetta observed emissions from atomic and molecular species from within the coma of comet 67P/Churyumov-Gerasimenko during t…
The New Horizons and Hubble Space Telescope Search For Rings, Dust, and Debris in the Pluto-Charon System
Tod R. Lauer, Henry B. Throop, Mark R. Showalter +11
We searched for dust or debris rings in the Pluto-Charon system before, during, and after the New Horizons encounter. Methodologies included searching for back-scattered light duri…
New Horizons Upper Limits on O in Pluto's Present Day Atmosphere
J. A. Kammer, S. A. Stern, G. R. Gladstone +5
The surprising discovery by the Rosetta spacecraft of molecular oxygen (O) in the coma of comet 67P/Churyumov-Gerasimenko (Bieler et al. 2015) challenged our understanding of t…
Evidence for Possible Clouds in Pluto's Present Day Atmosphere
S. A. Stern, J. A. Kammer, E. L. Barth +10
Several trace constituents can reach saturation vapor pressure in Pluto's present day atmosphere. As such, we describe a search for discrete could features in Pluto's atmosphere us…
HO and O Absorption in the Coma of Comet 67P/Churyumov-Gerasimenko Measured by the Alice Far-Ultraviolet Spectrograph on Rosetta
Brian A. Keeney, S. Alan Stern, Michael F. A'Hearn +10
We have detected HO and O absorption against the far-UV continuum of stars located on lines of sight near the nucleus of Comet 67P/Churyumov-Gerasimenko using the Alice ima…