485 citations · 1.2k across the 33 of their papers we have counts for
35 papers
The Ultraviolet Spectrograph on ESA's Jupiter Icy Moons Explorer Mission (JUICE-UVS)
Kurt D. Retherford, Philippa M. Molyneux, Thomas K. Greathouse +51
The Jupiter Icy Moons Explorer (JUICE) mission, led by ESA, has an Ultraviolet Spectrograph (JUICE-UVS) contributed by NASA and built at Southwest Research Institute. JUICE-UVS is…
Early Exploration of the Scientific Discovery Space for the Habitable Worlds Observatory
Courtney D. Dressing, Danica Adams, Evelyne Alecian +324
The Habitable Worlds Observatory (HWO) is a future NASA flagship mission concept identified by the Astro2020 Decadal Survey as the highest priority for large space missions. HWO sh…
ESCAPE: a small explorer mission to study the stellar drivers of exoplanet evolution
Allison Youngblood, Kevin France, Brian Fleming +37
The long-term stability of exoplanetary atmospheres depends critically on the extreme-ultraviolet (EUV) photon and high-energy particle fluxes from the host star, which are poorly…
Europa's Lyman- emissions from HST/STIS observations
L. Roth, K. D. Retherford, J. Saur +13
An image of Lyman- (Ly) emission from Europa obtained with the Hubble Space Telescope Space Telescope Imaging Spectrograph (HST/STIS) has previously provided the first eviden…
Laboratory Investigation of CO2-Driven Enhancement of Radiolytic H2O2 on Europa and Other Icy Moons
Bereket D. Mamo, Ujjwal Raut, Ben D. Teolis +5
Observations of Europa's leading hemisphere reveal elevated H2O2 in the warmer, low latitude chaos terrains compared to the colder, polar regions. This distribution disagrees with…
The Lyman alpha Sky as Observed by New Horizons
G. R. Gladstone, J. M. Shull, W. R. Pryor +22
During September 2023 the Alice ultraviolet spectrograph on the New Horizons (NH) spacecraft was used to map diffuse Lyman alpha (Lya) emission over most of the sky, at a range of…
Estimate of water and hydroxyl abundance on asteroid (16) Psyche from JWST data
Stephanie G. Jarmak, Tracy M. Becker, Charles E. Woodward +10
Our understanding of Solar System evolution is closely tied to interpretations of asteroid composition, particularly the M-class asteroids. These asteroids were initially thought t…
ALMA Spectroscopy of Europa: A Search for Active Plumes
M. A. Cordiner, A. E. Thelen, I. -L. Lai +7
The subsurface ocean of Europa is a high priority target in the search for extraterrestrial life, but direct investigations are hindered by the presence of a thick, exterior ice sh…
Mass supply from Io to Jupiter's magnetosphere
L. Roth, A. Blöcker, K. de Kleer +24
Since the Voyager mission flybys in 1979, we have known the moon Io to be both volcanically active and the main source of plasma in the vast magnetosphere of Jupiter. Material lost…
Constraints on Europa's water group torus from HST/COS observations
Lorenz Roth, H. Todd Smith, Kazuo Yoshioka +8
In-situ plasma measurements as well as remote mapping of energetic neutral atoms around Jupiter provide indirect evidence that an enhancement of neutral gas is present near the orb…
Jupiter Science Enabled by ESA's Jupiter Icy Moons Explorer
Leigh N. Fletcher, Thibault Cavalié, Davide Grassi +47
ESA's Jupiter Icy Moons Explorer (JUICE) will provide a detailed investigation of the Jovian system in the 2030s, combining a suite of state-of-the-art instruments with an orbital…
Catalog of Ultraviolet Bright Stars (CUBS): Strategies for UV occultation measurements, planetary illumination modeling, and sky map analyses using hybrid IUE-Kurucz spectra
M. A. Velez, K. D. Retherford, V. Hue +9
Ultraviolet spectroscopy is a powerful method to study planetary surface composition through reflectance measurements and atmospheric composition through stellar/solar occultations…
Probing Ganymede's atmosphere with HST Ly images in transit of Jupiter
Lorenz Roth, Gregorio Marchesini, Tracy M. Becker +6
We report results from far-ultraviolet observations by the Hubble Space Telescope of Jupiter's largest moon Ganymede transiting across the planet's dayside hemisphere. {Within} a t…
Alternating north-south brightness ratio of Ganymede's auroral ovals: Hubble Space Telescope observations around the Juno PJ34 flyby
Joachim Saur, Stefan Duling, Alexandre Wennmacher +17
We report results of Hubble Space Telescope observations from Ganymede's orbitally trailing side which were taken around the flyby of the Juno spacecraft on June 7, 2021. We find t…
Mapping the Brightness of Ganymede's Ultraviolet Aurora using Hubble Space Telescope Observations
Alexander Marzok, Stehpan Schlegel, Joachim Saur +4
We analyze Hubble Space Telescope (HST) observations of Ganymede made with the Space Telescope Imaging Spectrograph (STIS) between 1998 and 2017 to generate a brightness map of Gan…
A New UV Spectral Feature on Europa: Confirmation of NaCl in Leading-hemisphere Chaos Terrain
Samantha K. Trumbo, Tracy M. Becker, Michael E. Brown +6
Recent visible-wavelength observations of Europa's surface obtained with the Hubble Space Telescope revealed the presence of an absorption feature near 450 nm that appears spatiall…
A sublimated water atmosphere on Ganymede detected from Hubble Space Telescope observations
Lorenz Roth, Nickolay Ivchenko, G. Randall Gladstone +5
Ganymede's atmosphere is produced by charged particle sputtering and sublimation of its icy surface. Previous far-ultraviolet observations of the O{\small I\,}1356-Å and O{\small I…
Mars Astrobiological Cave and Internal habitability Explorer (MACIE): A New Frontiers Mission Concept
Charity M. Phillips-Lander, Ali Agha-Mohammadi, J. J. Wynne +20
Martian subsurface habitability and astrobiology can be evaluated via a lava tube cave, without drilling. MACIE addresses two key goals of the Decadal Survey (2013-2022) and three…
Ice Giant Atmospheric Science
Emma K. Dahl, Shawn Brueshaber, Richard Cosentino +24
This white paper, written in support of NASA's 2023-2032 Planetary Decadal Survey, outlines 10 major questions that focus on the origin, evolution, and current processes that shape…
Architectures and Technologies for a Space Telescope for Solar System Science
Kunio M. Sayanagi, Cindy L. Young, Lynn Bowman +37
We advocate for a mission concept study for a space telescope dedicated to solar system science in Earth orbit. Such a study was recommended by the Committee on Astrobiology and Pl…
Ultraviolet-Based Science in the Solar System: Advances and Next Steps
Amanda R. Hendrix, Tracy M. Becker, Dennis Bodewits +25
We review the importance of recent UV observations of solar system targets and discuss the need for further measurements, instrumentation and laboratory work in the coming decade.…
An attempt to detect transient changes in Io's SO2 and NaCl atmosphere
L. Roth, J. Boissier, A. Moullet +15
Io's atmosphere is predominately SO2 sustained by a combination of volcanic outgassing and sublimation. The loss from the atmosphere is the main mass source for Jupiter's large mag…
The Search for MeV Electrons 2-45 AU from the Sun with the Alice Instrument Microchannel Plate Detector Aboard New Horizons
B. A. Keeney, M. Versteeg, J. Wm. Parker +14
The Alice UV spectrograph aboard NASA's New Horizons mission is sensitive to MeV electrons that penetrate the instrument's thin aluminum housing and interact with its microchannel…
Pluto's Ultraviolet Spectrum, Surface Reflectance, and Airglow Emissions
Andrew J. Steffl, Leslie A. Young, Darrell F. Strobel +16
During the New Horizons spacecraft's encounter with Pluto, the Alice ultraviolet spectrograph conducted a series of observations that detected emissions from both the interplanetar…