Kinematic and Spectroscopic Constraints on the Origin of Interstellar Object 3I/ATLAS: An Ablative Propulsion Model
Authors/Creators
Description
PREPRINT — Not Yet Peer-Reviewed
This manuscript presents a comprehensive kinematic and spectroscopic
analysis of Interstellar Object 3I/ATLAS (C/2024 S1), identifying four
correlated anomalies statistically inconsistent with natural cometary
outgassing:
1. Compositional anomaly: Complete Iron/Nickel dissociation
(Fe/Ni ≈ 0.02:1 vs. solar 1.8:1), implying artificial refining
2. Dynamic pressure violation: A collimated sunward jet penetrating
100,000 km against solar wind pressure
3. Geometric precision: A persistent three-fold rotational symmetry
(120° ± 3°) in the venting structure
4. Trajectory control: Non-gravitational acceleration
(3 × 10⁻¹⁰ AU/d²) consistent with a controlled braking maneuver
To resolve these anomalies, we propose a "Hybrid" ablative propulsion
model: a solid-state refractory core encased in a harvested volatile
shell. We provide rigorous thermodynamic mass budget analysis and
Bayesian probability assessment that systematically rejects alternative
natural models, including recent CO-sublimation hypotheses.
This work is grounded in real observational data (HST/ACS, VLT/FORS2,
Swift UVOT) and offers two specific, falsifiable predictions for
March 2026:
- Abrupt valve closure: OH production drops from 40 to <1 kg/s within
14 ± 3 days
- Z-axis velocity correction: 0.5 ± 0.2 cm/s perpendicular to ecliptic,
detectable via Gaia G4 astrometry
These predictions can definitively confirm or refute the hypothesis
through independent astronomical observation.
While this manuscript addresses an extraordinary claim, it is
distinguished from speculation by: (1) rigorous quantitative analysis
of peer-reviewed observational data, (2) comprehensive rejection of
natural alternative hypotheses, and (3) specific, time-bound,
independently testable predictions.
This preprint is published to enable rapid international community
awareness and observation planning for the March 2026 testing window.
Publication as a preprint does not compete with journal peer review.
Journal Submission: Submitted to Journal of the British Interplanetary
Society (JBIS) for peer review.
Supplementary Materials: Extensive supporting data available,
including HST imagery, spectroscopic analysis, Monte Carlo simulations,
and engineering feasibility study.
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CRITICAL DISCLAIMER: This manuscript has NOT been peer-reviewed. Findings
are preliminary and subject to revision based on expert feedback. The
hypothesis of extraterrestrial engineering remains speculative until
confirmed by independent observation.
Notes
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Additional details
Related works
- Is derived from
- Preprint: 10.5281/zenodo.17822156 (DOI)
Dates
- Copyrighted
-
2026-01-04Submitted to Journal of the British Interplanetary Society (JBIS) for peer review.
References
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