38 citations · 70 across the 8 of their papers we have counts for
8 papers
The Cohesive Object Sequence: The Mass-Density Distribution of Astronomical Objects from Asteroids to Stars
Gabriel M Steward, Matthew Hedman
Plotting the mass-density of a wide range of astronomical objects as a function of their mass reveals that the vast majority of these objects fall along a ``cohesive object sequenc…
On the Detection of Exorings in Reflected Light with JWST NIRCam
Rachel Bowens-Rubin, Mary Anne Limbach, Sam Hopper +4
When directly imaging a cold giant exoplanet hosting a ring system, the reflected light from the rings can outshine the planet's thermal emission and reflected-light in the near-in…
Spectral trends across the rings and inner moons of Uranus and Neptune from JWST NIRCam images
M. M. Hedman, I. de Pater, R. Cartwright +8
JWST NIRCam images provide low-resolution spectra of the rings and inner moons orbiting Uranus and Neptune. These data reveal systematic variations in spectral parameters like the…
Constraining Time Variations in Enceladus' Water-Vapor Plume With Near-Infrared Spectra from Cassini-VIMS
Katie Denny, Matthew Hedman, Dominique Bockelée-Morvan +2
Water vapor produces a series of diagnostic emission lines in the near infrared between 2.60 and 2.75 microns. The Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassi…
Water-Ice Dominated Spectra of Saturn's Rings and Small Moons from JWST
M. M. Hedman, M. S. Tiscareno, M. R. Showalter +11
JWST measured the infrared spectra of Saturn's rings and several of its small moons (Epimetheus, Pandora, Telesto and Pallene) as part of Guaranteed Time Observation program 1247.…
JWST molecular mapping and characterization of Enceladus' water plume feeding its torus
G. L. Villanueva, H. B. Hammel, S. N. Milam +18
Enceladus is a prime target in the search for life in our solar system, having an active plume likely connected to a large liquid water subsurface ocean. Using the sensitive NIRSpe…
Characterizing deposits emplaced by cryovolcanic plumes on Europa
L. C. Quick, M. M. Hedman
In the absence of direct observations of Europa's particle plumes, deposits left behind during eruptive events would provide the best evidence for recent geological activity, and w…
Spatial Variations in the Dust-to-Gas Ratio of Enceladus' Plume
M. M. Hedman, D. Dhingra, P. D. Nicholson +4
On day 138 of 2010, the plume of dust and gas emerging from Enceladus' South Polar Terrain passed between the Sun and the Cassini spacecraft. This solar occultation enabled Cassini…