JWST mid-IR observations of interstellar comet 3I/ATLAS yield the first direct methane detection and confirm strongly enhanced CO2:H2O mixing ratios relative to solar system comets.
Title resolution pending
10 Pith papers cite this work. Polarity classification is still indexing.
representative citing papers
A new three-point inverse solution using the α-β model reconstructs meteoroid masses and bulk densities from limited fireball observations, achieving 88% convergence on the EN catalog and producing a continuous density range of 300-4000 kg m^{-3} instead of discrete PE categories.
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.
An analytic sky-motion formula applied to synthetic interstellar object populations indicates that high velocities, particularly for dim objects, may cause many to go undetected, implying a larger galactic population than currently observed.
The paper estimates 3I/ATLAS lost 1.05-6.56 meters of surface material (0.10-1.13% of its mass, or 10^9-10^10 kg) during its solar system passage based on observed production rates.
Microlensing-inferred free-floating planets plus bound planets require more mass than protoplanetary disks supply, even at 100% conversion efficiency, potentially creating a crisis if the mass function is bottom-heavy.
N-body simulations demonstrate that post-capture chaotic planet-planet interactions around pulsars can produce stable low-eccentricity orbits after ejections.
No stellar flybys within the past 10 Myr and 500 pc in Gaia DR3 explain the present trajectory of 3I/ATLAS, which matches thin-disk kinematics despite its high peculiar velocity.
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.
Candidate technosignature status on the Loeb Scale functions as structured scientific commitment under uncertainty that warrants methodological escalation but stops short of confirmation.
citing papers explorer
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The Volatile Inventory of 3I/ATLAS as seen with JWST/MIRI
JWST mid-IR observations of interstellar comet 3I/ATLAS yield the first direct methane detection and confirm strongly enhanced CO2:H2O mixing ratios relative to solar system comets.
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Consistency between dynamical modeling and photometrically derived masses of fireballs
A new three-point inverse solution using the α-β model reconstructs meteoroid masses and bulk densities from limited fireball observations, achieving 88% convergence on the EN catalog and producing a continuous density range of 300-4000 kg m^{-3} instead of discrete PE categories.
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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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Sky-Plane Velocity Distributions of Interstellar Objects and Implications for Their Detection
An analytic sky-motion formula applied to synthetic interstellar object populations indicates that high velocities, particularly for dim objects, may cause many to go undetected, implying a larger galactic population than currently observed.
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Assessment of the Mass Loss and Radius Change of 3I/ATLAS Based on Observed Production Rates
The paper estimates 3I/ATLAS lost 1.05-6.56 meters of surface material (0.10-1.13% of its mass, or 10^9-10^10 kg) during its solar system passage based on observed production rates.
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The Persistent Missing Mass Problem in Planet Formation
Microlensing-inferred free-floating planets plus bound planets require more mass than protoplanetary disks supply, even at 100% conversion efficiency, potentially creating a crisis if the mass function is bottom-heavy.
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Formation of stable exoplanetary systems around pulsars by capture: An exercise in computational classical mechanics
N-body simulations demonstrate that post-capture chaotic planet-planet interactions around pulsars can produce stable low-eccentricity orbits after ejections.
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3I/ATLAS: In Search of the Witnesses to Its Voyage
No stellar flybys within the past 10 Myr and 500 pc in Gaia DR3 explain the present trajectory of 3I/ATLAS, which matches thin-disk kinematics despite its high peculiar velocity.
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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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From Anomaly to Candidate Technosignature: The Threshold Problem of the Loeb Scale
Candidate technosignature status on the Loeb Scale functions as structured scientific commitment under uncertainty that warrants methodological escalation but stops short of confirmation.