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The Dense, Rocky Core of Haumea Revealed by Satellite Dynamics
Benjamin Proudfoot, Darin Ragozzine, Will Grundy +2
The icy dwarf planets in the outer solar system are among the most enigmatic bodies known, showing activity ranging from atmospheric resurfacing to possible cryovolcanism. Yet the…
Thermophysical characterization of the potentially hazardous near-Earth object 2024 YR4
T. G. Müller, E. M. MacLennan, A. Y. Burdanov +7
The asteroid 2024 YR4 is a potentially hazardous Apollo-type near-Earth object. Its highly eccentric orbit produces close Earth-Moon encounters roughly every 4 years. A collection…
Best practices for obtaining astrometric observations from JWST (274) NIRCam data
Marco Micheli, Bryan J. Holler
The James Webb Space Telescope (JWST), with its near-infrared imager NIRCam, is capable of obtaining detections of small bodies down to what would correspond to a visual magnitude…
Linear Continuum Modelling to Explain The Majority of Bulk Features of Kuiper Belt Object Spectra
Wesley C. Fraser, Laura E. Buchanan, Ian Wong +2
The first analyses of the James Webb Space Telescope spectra of trans-Neptunian Objects (TNOs) revealed three discrete types of surfaces. This seems to contradict ground-based spec…
Wide field Slitless Spectroscopy with JWST's MIRI
Andreea Petric, Sarah Kendrew, David Law +12
We present a snapshot of the ongoing efforts to obtain background-subtracted, wavelength-, and flux-calibrated spectra taken with the new Wide-Field Slitless Spectroscopy (WFSS) mo…
Callisto from JWST: CO2-rich terrain on the leading hemisphere and global patterns of H2O ice
Maria Camarca, Katherine de Kleer, Richard J. Cartwright +5
We present maps of H2O, CO2, and a 4.57 um spectral feature across Callisto's surface observed using the James Webb Space Telescope (JWST). H2O ice was mapped by measuring band par…