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A JWST Study of Stardust. II. Polycyclic Aromatic Hydrocarbons in Comet 81P/Wild 2 and Implications for Primitive Solar System Carbon
Nathan X. Roth, Stefanie N. Milam, Diane H. Wooden +11
We report observations of comet 81P/Wild 2, target of the Stardust sample return mission, on UT 2023 March 20 and 24 at a heliocentric distance () of 1.85 au using the NIRSpec…
A JWST Study of Stardust. I. Infrared Spectroscopy of Comet 81P/Wild 2 and Overall Composition
Nathan X. Roth, Stefanie N. Milam, Diane H. Wooden +11
We report observations of comet 81P/Wild 2, target of the Stardust sample return mission, on UT 2023 March 20 and 24 at a heliocentric distance () of 1.85 au using the NIRSpec…
The Evolution in Coma Molecular Composition of Comet C/2017 K2 (PanSTARRS) Across the HO Sublimation Zone: ALMA Imaging of an HO-Dominated Coma
Nathan X. Roth, Stefanie N. Milam, Martin A. Cordiner +8
We report a survey of molecular emission from cometary volatiles using the Atacama Large Millimeter/Submillimeter Array (ALMA) toward comet C/2017 K2 (PanSTARRS) carried out on UT…
A JWST Study of the Remarkable Oort Cloud Comet C/2017 K2 (PanSTARRS)
Charles E. Woodward, Dominique Bockelee-Morvan, David E. Harker +4
Comets, during their journeys into the inner solar system, deliver volatile gases, organics, and particulates into their comae that provide crucial information for assessing the ph…
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…
Dust Properties of Comets Observed by Spitzer
David E. Harker, Diane H. Wooden, Michael S. P. Kelley +1
As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system. Cometary…