Interstellar Object 3I/ATLAS: Post-Perihelion Evolution, Spectral Variability, and Implications for Extraterrestrial Matter Exchange

This paper presents a comprehensive post-perihelion analysis of the interstellar object 3I/ATLAS, focusing on its anomalous thermal evolution, non-gravitational acceleration, and nickel-rich refractory composition. Through comparative modeling of sublimation rates, polarization, and spectral bands of hydrated silicates, the study proposes a new classification framework distinguishing 3I/ATLAS from canonical solar comets. All datasets used are derived from publicly available JWST, Gaia, and JPL observations. DOI: https://doi.org/10.5281/zenodo.17565918

Keywords

Refractory materials, GuardianX Research, Rana Al Dahlake, CO₂ sublimation, Gaia data, Spectral analysis, Hydrated silicates, Non-gravitational acceleration, Nickel enrichment, Interstellar object, Solar system comets, Thermal modeling, Polarization, JWST spectroscopy, 3I/ATLAS, Cometary physics, Post-perihelion evolution, Extraterrestrial matter exchange, Interstellar dust, Astrochemistry

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