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Neptune's Dynamic Atmosphere from Kepler K2 Observations: Implications for Brown Dwarf Light Curve Analyses
Amy A. Simon, Jason F. Rowe, Patrick Gaulme +9
Observations of Neptune with the Kepler Space Telescope yield a 49-day light curve with 98% coverage at a 1-minute cadence. A significant signature in the light curve comes from di…
High S/N Keck and Gemini AO imaging of Uranus during 2012-2014: New cloud patterns, increasing activity, and improved wind measurements
L. A. Sromovsky, I. de Pater, P. M. Fry +2
We imaged Uranus in the near infrared from 2012 into 2014, using the Keck/NIRC2 camera and Gemini/NIRI camera, both with adaptive optics. We obtained exceptional signal to noise ra…
Uranus at equinox: Cloud morphology and dynamics
Lawrence Sromovsky, Patrick Fry, Heidi Hammel +5
As the 7 December 2007 equinox of Uranus approached, ring and atmosphere observers produced a substantial collection of observations using the 10-m Keck telescope and the Hubble Sp…
Post-equinox dynamics and polar cloud structure on Uranus
Lawrence Sromovsky, Patrick Fry, Heidi Hammel +2
Post equinox imaging of Uranus by HST, Keck, and Gemini telescopes has enabled new measurements of winds over previously sampled latitudes as well as measurements at high northern…
Methane depletion in both polar regions of Uranus inferred from HST/STIS and Keck/NIRC2 observations
Lawrence Sromovsky, Erich Karkoschka, Patrick Fry +3
From STIS observations of Uranus in 2012, we found that the methane volume mixing ratio declined from about 4% at low latitudes to about 2% at 60 deg N and beyond. This is similar…
Record-breaking Storm Activity on Uranus in 2014
Imke de Pater, L. A. Sromovsky, P. M. Fry +3
In spite of an expected decline in convective activity following the 2007 equinox of Uranus, eight sizable storms were detected on the planet with the near-infrared camera NIRC2, c…