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JWST Near-infrared Spectroscopy of the Lucy Jupiter Trojan Flyby Targets: Evidence for OH Absorption, Aliphatic Organics, and CO2
Noll, Keith S.; Grundy, William M.; Brown, Michael E. +6 more
We present observations obtained with the Near Infrared Spectrograph on JWST of the five Jupiter Trojans that will be visited by the Lucy spacecraft—the Patroclus–Menoetius binary, Eurybates, Orus, Leucus, and Polymele. The measured 1.7–5.3 µm reflectance spectra, which provide increased wavelength coverage, spatial resolution, and signal-to…
3 µm Phase Curves of Main-belt Asteroids from NEOWISE Photometry
Oszkiewicz, Dagmara; Masiero, Joseph; Chanover, Nancy +1 more
The shapes of asteroid phase curves are influenced by the physical properties of asteroid surfaces. The variation of an asteroid's brightness as a function of the solar phase angle can tell us about surface properties such as grain size distribution, roughness, porosity, and composition. Phase curves are traditionally derived from photometric obse…