activity
20152021
most citedMethane on Uranus: The case for a compact CH4 cloud layer at low latitudes and a severe CH4 depletion at high-latitudes based on re-analysis of Voyager occultation measurements and STIS spectroscopy

113 citations · 720 across the 18 of their papers we have counts for

collaborators

18 papers

astro-ph.EP2021★ 7 cited

Evolution of Saturn's north polar color and cloud structure between 2012 and 2017 inferred from Cassini VIMS and ISS observations

L. A. Sromovsky, K. H. Baines, P. M. Fry

Cassini/ISS imagery and Cassini/VIMS spectral imaging observations from 0.35 to 5.12 microns show that between 2012 and 2017 the region poleward of the Saturn's northern hexagon ch…

astro-ph.EP2019★ 4 cited

Interpretation of shadows and antishadows on Saturn and the evidence against south polar eyewalls

Lawrence A. Sromovsky, Patrick M. Fry, Kevin H. Baines

Cassini spacecraft observations of Saturn in 2006 revealed south polar cloud shadows, the common interpretation of which was initiated by Dyudina et al. (2008, Science 319, 1801) w…

astro-ph.EP2019★ 7 cited

Saturn's south polar cloud composition and structure inferred from 2006 Cassini/VIMS spectra and ISS images

Lawrence A. Sromovsky, Kevin H. Baines, Patrick M. Fry

We used 0.85 - 5.1 micron 2006 observations by Cassini's Visual and Infrared Mapping Spectrometer (VIMS) to constrain the unusual vertical structure and compositions of cloud layer…

astro-ph.EP2019★ 2 cited

Astro2020 Science White Paper: Triggered High-Priority Observations of Dynamic Solar System Phenomena

Nancy Chanover, Michael H. Wong, Thomas Greathouse +30

Unexpected dynamic phenomena have surprised solar system observers in the past and have led to important discoveries about solar system workings. Observations at the initial stages…

astro-ph.EP2019★ 2 cited

Solar system Deep Time-Surveys of atmospheres, surfaces, and rings

Michael H. Wong, Richard Cartwright, Nancy Chanover +20

Imaging and resolved spectroscopy reveal varying environmental conditions in our dynamic solar system. Many key advances have focused on how these conditions change over time. Obse…

astro-ph.EP2018★ 34 cited

Analysis of Neptune's 2017 Bright Equatorial Storm

Edward Molter, Imke de Pater, Statia Luszcz-Cook +22

We report the discovery of a large (8500 km diameter) infrared-bright storm at Neptune's equator in June 2017. We tracked the storm over a period of 7 months with high-cadenc…

astro-ph.EP2018★ 48 cited

The methane distribution and polar brightening on Uranus based on HST/STIS, Keck/NIRC2, and IRTF/SpeX observations through 2015

Lawrence A. Sromovsky, Erich Karkoschka, Patrick M. Fry +2

HST/STIS observations of Uranus in 2015 show that the depletion of upper tropospheric methane has been relatively stable and that the polar region has been brightening over time as…

astro-ph.EP2017★ 24 cited

Neptune long-lived atmospheric features in 2013-2015 from small (28-cm) to large (10-m) telescopes

R. Hueso, I. de Pater, A. Simon +32

Since 2013, observations of Neptune with small telescopes have resulted in several detections of long-lived bright atmospheric features that have also been observed by large telesc…

astro-ph.EP2016★ 21 cited

Cloud clearing in the wake of Saturn's Great Storm of 2010 - 2011 and suggested new constraints on Saturn's He/H2 ratio

L. A. Sromovsky, K. H. Baines, P. M. Fry +1

Saturn's Great Storm of 2010 - 2011 produced a planet-encircling wake that slowly transitioned from a region that was mainly dark at 5 microns in February 2011 to a region that was…

astro-ph.EP2015★ 74 cited

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…

astro-ph.EP2015★ 52 cited

The source of widespread 3-m absorption in Jupiter's clouds: Constraints from 2000 Cassini VIMS observations

Lawrence Sromovsky, Patrick Fry

The Cassini flyby of Jupiter in 2000 provided spatially resolved spectra of Jupiter's atmosphere using the Visual and Infrared Mapping Spectrometer (VIMS). These spectra contain a…

astro-ph.EP2015★ 42 cited

Dynamics of cloud features on Uranus

Lawrence Sromovsky, Patrick Fry

Near-infrared adaptive optics imaging of Uranus by the Keck 2 telescope during 2003 and 2004 has revealed numerous discrete cloud features, 70 of which were used to extend the zona…

astro-ph.EP2015★ 113 cited

Methane on Uranus: The case for a compact CH4 cloud layer at low latitudes and a severe CH4 depletion at high-latitudes based on re-analysis of Voyager occultation measurements and STIS spectroscopy

Lawrence Sromovsky, Patrick Fry, Joo Hyeon Kim

Lindal et al. (1987, J. Geophys. Res. 92, 14987-15001) presented a range of temperature and CH4 profiles for Uranus that were consistent with 1986 Voyager radio occultation measure…

astro-ph.EP2015★ 60 cited

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…

astro-ph.EP2015★ 28 cited

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…

astro-ph.EP2015★ 72 cited

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…

astro-ph.EP2015★ 61 cited

Saturn's Great Storm of 2010-2011: Evidence for ammonia and water ices from analysis of VIMS spectra

Lawrence Sromovsky, Kevin Baines, Patrick Fry

Our analysis of Cassini/VIMS near-infrared spectra of Saturn's Great Storm of 2010-2011 reveals a multi-component aerosol composition comprised primarily of ammonia ice, with a sig…

astro-ph.EP2015★ 69 cited

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…