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Related papers: Evidence for Possible Clouds in Pluto's Present Da…

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The New Horizons flyby of Pluto confirmed the existence of hazes in its atmosphere. Observations of a large high- to low- phase brightness ratio, combined with the blue color of the haze, suggest that the haze particles are fractal…

Observations of Pluto's companion planet Charon have so far yielded no compelling evidence for a persistent atmosphere. However, with the upcoming encounter of New Horizons at the Pluto-Charon system, sensitivity to detection of a possible…

Earth and Planetary Astrophysics · Physics 2016-05-31 Joshua A. Kammer , S. Alan Stern

The New Horizons spacecraft returned images and compositional data showing that terrains on Pluto span a variety of ages, ranging from relatively ancient, heavily cratered areas to very young surfaces with few-to-no impact craters. One of…

On July 14th 2015, NASA's New Horizons mission gave us an unprecedented detailed view of the Pluto system. The complex compositional diversity of Pluto's encounter hemisphere was revealed by the Ralph/LEISA infrared spectrometer on board of…

We apply scintillation theory to stellar signal fluctuations in the high-resolution, high signal/noise, dual-wavelength data from the MMT observation of the 2007 March 18 occultation of P445.3 by Pluto. A well-defined high wavenumber cutoff…

Earth and Planetary Astrophysics · Physics 2015-05-13 W. B. Hubbard , D. W. McCarthy , C. A. Kulesa , S. D. Benecchi , M. J. Person , J. L. Elliot , A. A. S. Gulbis

The New Horizons spacecraft has found evidence for geologic activity on the surface of Pluto, including extensional tectonic deformation of its water ice bedrock (see Moore et al., 2016). One mechanism that could drive extensional tectonic…

Earth and Planetary Astrophysics · Physics 2016-08-03 Noah P. Hammond , Amy C. Barr , Edgar M. Parmentier

A search for temporal changes on Pluto and Charon was motivated by (1) the discovery of young surfaces in the Pluto system that imply ongoing or recent geologic activity, (2) the detection of active plumes on Triton during the Voyager 2…

This review presents an insight into our current knowledge of the atmospheres of the planets Venus, Mars, Jupiter, Saturn, Uranus and Neptune, the satellite Titan, and those of exoplanets. It deals with the thermal structure, aerosol…

Earth and Planetary Astrophysics · Physics 2023-12-12 Agustín Sánchez-Lavega , Patrick Irwin , Antonio García Muñoz

With dayside temperatures hot enough to sustain a magma ocean and a silicate atmosphere, lava planets are the best targets to study the atmosphere of a rocky world. In the absence of nightside heating, the entire atmosphere collapses near…

Earth and Planetary Astrophysics · Physics 2024-12-02 T. Giang Nguyen , Nicolas B. Cowan , Lisa Dang

An analytic expression for the variation in surface and sub-surface temperature is developed for worlds whose surface pressures are nearly constant with latitude and longitude and whose atmospheres are in vapor-pressure equilibrium with the…

Earth and Planetary Astrophysics · Physics 2015-06-05 Leslie A. Young

We present a 3D general circulation model of Pluto and Triton's atmospheres, which uses radiative-conductive-convective forcing. In both the Pluto and Triton models, an easterly (prograde) jet is present at the equator with a maximum…

Earth and Planetary Astrophysics · Physics 2015-06-12 Angela Zalucha , Timothy Michaels

Results are presented from a 3-D Pluto general circulation model (GCM) that includes conductive heating and cooling, non-local thermodynamic equilibrium (non-LTE) heating by methane at 2.3 and 3.3 microns, non-LTE cooling by cooling by…

Earth and Planetary Astrophysics · Physics 2016-03-29 Angela M. Zalucha

The New Horizons spacecraft provided near global observations of Pluto that far exceed the resolution of Earth-based data sets. Most Pluto New Horizons analysis hitherto has focused on the encounter hemisphere of Pluto (i.e., the antiCharon…

The presence of N2 in the surface environment of Pluto is critical in creating Pluto's richness of features and processes. Here, we propose that the nitrogen atoms in the N2 observed on Pluto were accreted in that chemical form during the…

Earth and Planetary Astrophysics · Physics 2018-05-29 Christopher R. Glein , J. Hunter Waite

Since its discovery in 1930, Pluto's mass has been a value that has repeatedly been calculated. Additionally, the search for Planet X prior to Pluto's discovery results in mass calculations that date back several decades earlier. Over its…

Popular Physics · Physics 2016-04-04 Michael B. Lund

The small satellites of the Pluto system (Styx, Nix, Kerberos, and Hydra) have very low surface escape velocities, and impacts should therefore eject a large amount of material from their surfaces. We show that most of this material then…

Earth and Planetary Astrophysics · Physics 2015-06-19 Simon Porter , William Grundy

Context. During the last 30 years the surface of Pluto has been characterized, and its variability has been monitored, through continuous near-infrared spectroscopic observations. But in the visible range only few data are available. Aims.…

Earth and Planetary Astrophysics · Physics 2016-01-13 V. Lorenzi , N. Pinilla-Alonso , J. Licandro , D. P. Cruikshank , W. M. Grundy , R. P. Binzel , J. P. Emery

Europa's subsurface ocean is a potential candidate for life in the outer solar system. It is thought that plumes may exist which eject ocean material out into space, which may be detected by a spacecraft flyby. Previous work on the…

Earth and Planetary Astrophysics · Physics 2023-03-15 Rowan Dayton-Oxland , Hans L. F. Huybrighs , Thomas O. Winterhalder , Arnaud Maheiux , David Goldstein

Over the last decade, precise exoplanet transmission spectroscopy has revealed the atmospheres of dozens of exoplanets, driven largely by observatories like the Hubble Space Telescope. One major discovery has been the ubiquity of…

Predicting the rate of escape and thermal structure of Pluto's upper atmosphere in preparation for the New Horizons Spacecraft encounter in 2015 is important for planning and interpreting the expected measurements. Having a moderate Jeans…

Earth and Planetary Astrophysics · Physics 2015-06-12 Justin T. Erwin , O. J. Tucker , Robert E. Johnson