457P shows dust activity without detectable H2O, CO, CO2, or CH3OH, with Q(H2O) < 2e24 molecules/s, indicating it may be more volatile-depleted than other main-belt comets.
Title resolution pending
6 Pith papers cite this work. Polarity classification is still indexing.
fields
astro-ph.EP 6representative citing papers
Tianwen-1 provided the first out-of-plane imaging of 3I/ATLAS, indicating large dust grains (hundreds of micrometers) ejected at 3-10 m/s with steady-state outflow and a mass loss rate of about 1000 kg/s.
Post-perihelion UVES spectra of interstellar comet 3I/ATLAS reveal elevated NiI and FeI production explained by direct sublimation of Ni(CO)4 and Fe(CO)5 from subsurface layers, with a transient heat source accounting for the pre-perihelion Ni excess.
JWST observations of 133P/Elst-Pizarro yield water outgassing rates of (1.9 ± 0.6) × 10^25 and (1.4 ± 0.4) × 10^25 molecules/s at true anomalies 8° and 37.4°, with hypervolatile depletion Q(CO2)/Q(H2O) < 0.009 and an average log(Afrho/Q(H2O)) = -24.6 ± 0.2 across three MBCs.
Rubin Observatory delivers the earliest large-telescope astrometry and grizy photometry of interstellar comet 3I/ATLAS, including colors and a dust-to-nucleus cross-section ratio lower limit.
Spectroscopic observations of disintegrating comet C/2019 Y4 (ATLAS) classify it as a typical Oort cloud comet with less dust, where porous dust accounts for its slightly red reflectivity gradient of ~5% per 1000 Å.
citing papers explorer
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Emerging Diversity Among the Main-Belt Comets: Insights from JWST and Ground-Based Observations of 457P/Lemmon-PANSTARRS
457P shows dust activity without detectable H2O, CO, CO2, or CH3OH, with Q(H2O) < 2e24 molecules/s, indicating it may be more volatile-depleted than other main-belt comets.
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Interstellar Object 3I/ATLAS Observed from Mars by China's Tianwen-1 Spacecraft
Tianwen-1 provided the first out-of-plane imaging of 3I/ATLAS, indicating large dust grains (hundreds of micrometers) ejected at 3-10 m/s with steady-state outflow and a mass loss rate of about 1000 kg/s.
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Origin and evolution of NiI and FeI in the coma of the interstellar comet 3I/ATLAS throughout its trajectory
Post-perihelion UVES spectra of interstellar comet 3I/ATLAS reveal elevated NiI and FeI production explained by direct sublimation of Ni(CO)4 and Fe(CO)5 from subsurface layers, with a transient heat source accounting for the pre-perihelion Ni excess.
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Characterization of the Volatile Properties of 133P/Elst-Pizarro and Other Main-Belt Comets with JWST and Ground-Based Observations
JWST observations of 133P/Elst-Pizarro yield water outgassing rates of (1.9 ± 0.6) × 10^25 and (1.4 ± 0.4) × 10^25 molecules/s at true anomalies 8° and 37.4°, with hypervolatile depletion Q(CO2)/Q(H2O) < 0.009 and an average log(Afrho/Q(H2O)) = -24.6 ± 0.2 across three MBCs.
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NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
Rubin Observatory delivers the earliest large-telescope astrometry and grizy photometry of interstellar comet 3I/ATLAS, including colors and a dust-to-nucleus cross-section ratio lower limit.
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Dust and Volatiles in the Disintegrating Comet C/2019 Y4 (ATLAS)
Spectroscopic observations of disintegrating comet C/2019 Y4 (ATLAS) classify it as a typical Oort cloud comet with less dust, where porous dust accounts for its slightly red reflectivity gradient of ~5% per 1000 Å.