64 citations · 329 across the 22 of their papers we have counts for
25 papers
Radiation sputtering of hydrocarbon ices at Europa-relevant temperatures
Sankhabrata Chandra, Bryana L. Henderson, Murthy S. Gudipati
The surfaces of some icy moons, such as Jupiter's moon Europa, are heavily bombarded by energetic particles that can alter the surface materials and affect the composition of its e…
Electron-induced chemistry and sputtering of volatile species from amorphous and crystalline water ice
Yogeshwar Nath Mishra, Sankhabrata Chandra, Murthy S. Gudipati +3
Electron irradiation of water-rich ices plays a significant role in initiating the chemical and physical processes on the surface of airless icy bodies in radiation environments su…
Electron-induced CO2 and hydrocarbon sputtering of functionalized hydrocarbons in icy planetary analogs
Sankhabrata Chandra, Bryana L. Henderson, Murthy S. Gudipati
CO2 has been detected in both the tenuous exosphere and surface chaos regions of Europa, but it is still unclear whether this CO2 is generated in situ by radiolysis or whether it i…
Experimental investigations of diacetylene ice photochemistry in Titan's atmospheric conditions
Benjamin Fleury, Murthy S. Gudipati, Isabelle Couturier-Tamburelli
A large fraction of the organic species produced photochemically in the atmosphere of Titan can condense to form ice particles in the stratosphere and in the troposphere. According…
Phase and morphology of water-ice grains formed in a cryogenic laboratory plasma
André Nicolov, Murthy S. Gudipati, Paul M. Bellan
Grains of ice are formed spontaneously when water vapor is injected into a weakly-ionized laboratory plasma in which the background gas has been cooled to cryogenic temperatures co…
Experimental Investigation of the Photochemical Production of Hydrocarbons in Warm Gas Giant Exoplanet Atmospheres
Benjamin Fleury, Yves Benilan, Olivia Venot +3
In warm (equilibrium temperature <1000 K) gas giant exoplanet atmospheres, the observation of trace species in abundances deviating from thermochemical equilibrium predictions coul…
Volatiles in the HO and CO ices of comet 67P/Churyumov-Gerasimenko
Martin Rubin, Kathrin Altwegg, Jean-Jacques Berthelier +11
ESA's Rosetta spacecraft at comet 67P/Churyumov-Gerasimenko (67P) was the first mission that accompanied a comet over a substantial fraction of its orbit. On board was the ROSINA m…
Thermal Behavior of Astrophysical Amorphous Molecular Ices
Murthy S. Gudipati, Benjamin Fleury, Robert Wagner +3
Ice is a major component of astrophysical environment - from interstellar molecular clouds through protoplanetary disks to evolved solar systems. Ice and complex organic matter coe…
High-fidelity reaction kinetic modeling of hot-Jupiter atmospheres incorporating thermal and UV photochemistry enhanced by metastable CO(a3Pi)
Jeehyun Yang, Murthy S. Gudipati, Bryana L Henderson +1
A detailed modeling of simultaneous UV-photochemical and thermochemical processes in exoplanet atmosphere-like conditions is essential for the analysis and interpretation of a vast…
Linking atmospheric chemistry of the hot Jupiter HD 209458b to its formation location through infrared transmission and emission spectra
Spandan Dash, Liton Majumdar, Karen Willacy +6
The elemental ratios of carbon, nitrogen, and oxygen in the atmospheres of hot Jupiters may hold clues to their formation locations in the protostellar disc. In this work, we adopt…
Influence of C/O Ratio on Hot Jupiter Atmospheric Chemistry
Benjamin Fleury, Murthy S. Gudipati, Bryana L. Henderson +1
We have conducted laboratory experiments to study the chemistry in hot Jupiter atmospheres with C/O ratio of 0.35. We have compared our results with the ones obtained previously fo…
Photochemistry in hot H2-dominated exoplanet atmospheres
Benjamin Fleury, Murthy S. Gudipati, Bryana L. Henderson +1
Photochemistry has the potential to substantially impact the atmospheric composition of exoplanets with consequences on the radiative transfer, thermal structure and dynamics of th…
Science goals and new mission concepts for future exploration of Titan's atmosphere geology and habitability: Titan POlar Scout/orbitEr and In situ lake lander and DrONe explorer (POSEIDON)
Sébastien Rodriguez, Sandrine Vinatier, Daniel Cordier +61
In response to ESA Voyage 2050 announcement of opportunity, we propose an ambitious L-class mission to explore one of the most exciting bodies in the Solar System, Saturn largest m…
Visible-Light Photoionization of Aromatic Molecules in Water-Ice: Organic Chemistry across the Universe with Less Energy
Antti Lignell, Laura I. Tanalenda-Ossorio, Murthy S. Gudipati
Ionization of gas-phase organic molecules such as polycyclic aromatic hydrocarbons (PAHs) requires vacuum ultraviolet photons at wavelengths shorter than 200 nm (~6-9 eV). We prese…
Critical Laboratory Studies to Advance Planetary Science and Support Missions
Edith Fayolle, Laurie Barge, Morgan Cable +18
Laboratory studies for planetary science and astrobiology aimat advancing our understanding of the Solar System through the promotion of theoretical and experimental research into…
The Importance of Prioritizing Exoplanet Experimental Facilities
Erika Kohler, Chao He, Sarah E. Moran +9
Continuous improvements of observations and modeling efforts have led to tremendous strides in exoplanetary science. However, as instruments and techniques advance laboratory data…
Europa's surface water ice crystallinity: Discrepancy between observations and thermophysical and particle flux modeling
Jodi R. Berdis, Murthy S. Gudipati, James R. Murphy +1
Physical processing of Europan surface water ice by thermal relaxation, charged particle bombardment, and possible cryovolcanic activity can alter the percentage of the crystalline…
The Need for Laboratory Measurements and Ab Initio Studies to Aid Understanding of Exoplanetary Atmospheres
Jonathan J. Fortney, Tyler D. Robinson, Shawn Domagal-Goldman +85
We are now on a clear trajectory for improvements in exoplanet observations that will revolutionize our ability to characterize their atmospheric structure, composition, and circul…
Photoreactivity of condensed acetylene on Titan aerosols analogues
Benjamin Fleury, Murthy S. Gudipati, Isabelle Couturier-Tamburelli +1
Volatile organic molecules formed by photochemistry in the upper atmosphere of Titan can undergo condensation as pure ices in the stratosphere and the troposphere as well as conden…
Evolution of Titan s high-altitude aerosols under ultraviolet irradiation
Nathalie Carrasco, Sarah Tigrine, Lisseth Gavilan +2
The Cassini-Huygens space mission revealed that Titan s thick brownish haze is initiated high in the atmosphere at about 1000 km of altitude, before a slow transportation down to t…
Observing Outer Planet Satellites (except Titan) with JWST: Science Justification and Observational Requirements
Laszlo Keszthelyi, Will Grundy, John Stansberry +6
The James Webb Space Telescope (JWST) will allow observations with a unique combination of spectral, spatial, and temporal resolution for the study of outer planet satellites withi…
Cometary Science with the James Webb Space Telescope
Michael S. P. Kelley, Charles E. Woodward, Dennis Bodewits +12
The James Webb Space Telescope (JWST), as the largest space-based astronomical observatory with near- and mid-infrared instrumentation, will elucidate many mysterious aspects of co…
Laboratory Determination of the Infrared Band Strengths of Pyrene Frozen in Water Ice: Implications for the Composition of Interstellar Ices
E. E. Hardegree-Ullman, M. S. Gudipati, A. C. A. Boogert +4
Broad infrared emission features (e.g., at 3.3, 6.2, 7.7, 8.6, and 11.3 microns) from the gas phase interstellar medium have long been attributed to polycyclic aromatic hydrocarbon…
The Impact of Recent Advances in Laboratory Astrophysics on our Understanding of the Cosmos
D. W. Savin, N. S. Brickhouse, J. J. Cowan +11
An emerging theme in modern astrophysics is the connection between astronomical observations and the underlying physical phenomena that drive our cosmos. Both the mechanisms respon…