82 citations · 193 across the 17 of their papers we have counts for
17 papers · 1 filter
JWST and Gemini Observations of the Active Centaur 450P/LONEOS: Nucleus and Coma Characterizations
Charles A. Schambeau, Michael S. P. Kelley, Maria Womack +16
Between 2019 and 2024, we used the Gemini-N and JWST observatories to conduct a detailed case study of the active Centaur 450P/LONEOS, whose orbit was significantly altered by a cl…
NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
Colin Orion Chandler, Pedro H. Bernardinelli, Mario Jurić +305
We report on the observation and measurement of astrometry, photometry, morphology, and activityof the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS) with the NSF-…
Activity-Induced Near-Infrared Variability at 29P/Schwassmann-Wachmann 1, 2017-2022
Theodore Kareta, Charles A. Schambeau, Megan Firgard +1
29P/Schwassmann-Wachmann 1 (SW1) is both the first-discovered active Centaur and the most outburst-prone comet known. The nature of SW1's many outbursts, which regularly brighten t…
The Discovery and Evolution of a Possible New Epoch of Cometary Activity by the Centaur (2060) Chiron
Matthew M. Dobson, Megan E. Schwamb, Alan Fitzsimmons +24
Centaurs are small Solar System objects on chaotic orbits in the giant planet region, forming an evolutionary continuum with the Kuiper belt objects and Jupiter-family comets. Some…
Unveiling the ice and gas nature of active centaur (2060) Chiron using the James Webb Space Telescope
N. Pinilla-Alonso, J. Licandro, R. Brunetto +15
(2060) Chiron is a large centaur that has been reported active on multiple occasions including during aphelion passage. Studies of Chirons coma during active periods have resulted…
Semi-major Axis Jumps as the Activity Trigger in Centaurs and High-Perihelion Jupiter Family Comets
Eva Lilly, Peter Jevčák, Charles Schambeau +7
We present a dynamical study of 39 active Centaurs and 17 high-perihelion (q4.5 au) JFCs with a focus on investigating recent orbital changes as potential triggers for comet-lik…