Amir Siraj, Abraham Loeb. arxiv.org. July 22, 2021.
Siraj and Loeb infer a potentially large interstellar population from prior observations and population assumptions. The paper introduces no new data; selection, size distributions and model sensitivity limit its abundance estimates.
■ Complete supplied four-page manuscript; conditional abundance model
Amir Siraj, Abraham Loeb. arxiv.org. October 5, 2020.
Siraj and Loeb forecast interstellar-object velocity and direction distributions from conventional stellar ejection. Their estimates distinguish 12-object velocity and 180-object angular tests of two ejection models from a separate 12-object anisotropy test. Density, size, sampling and detection assumptions remain uncertain. White-dwarf, outer-cloud and interstellar-medium alternatives are retained. Discovery forecasts and an artifact conjecture are not observations. Manuscript comments and work-level grant support do not establish government access.
■ Received written text and native layouts; originals and interpretation gaps
Amir Siraj, Abraham Loeb. arxiv.org. January 8, 2020.
Siraj and Loeb propose stellar occultations as a way to find conventional interstellar objects. An idealized all-sky forecast of about one annual event depends on population, size, noise and observing assumptions. Bound Kuiper-belt and Oort-cloud populations are ordinary alternatives, with overlapping timescales. Metadata, citation, figure, axis and model discrepancies remain unresolved. This supplied preprint reports forecasts rather than detections; work-level grant support does not establish government access.
■ Received written text and native layouts; originals and interpretation gaps
Amir Siraj, Abraham Loeb. arxiv.org. April 15, 2019.
Siraj and Loeb infer an interstellar meteor trajectory from catalogue inputs and an assumed error model. The paper attributes uncertainty information to Heavner and quotes a reported DoD statement, with Worden, Daniels, Shaw, Mozer, an anonymous analyst and Hurd credited for distinct clarification roles. Original correspondence and classified data were not received. Conditional confidence, ordinary bound comparators, population assumptions and mass-budget tension remain. Government review does not establish researcher classified access, artificial origin or recovered material.
■ Received preprint text and native layouts; original data and contact gaps
David M. Kipping, Joel Hartman, Lars A. Buchhave, Allan R. Schmitt, Gáspár Á. Bakos, David Nesvorný. arxiv.org. January 9, 2013.
The authors find no compelling exomoon evidence among seven selected Kepler candidates. Archival transit analysis and author-reported2012 stellar spectra support conditional mass limits; physical and predictive checks reject candidate fits. Noise, starspots and model assumptions limit inference. This provides research-method context, with no independent moon or UAP confirmation.
■ Complete supplied manuscript; original rendition unresolved
Abraham Loeb, Edwin L. Turner. arxiv.org. March 13, 2012.
Loeb and Turner propose tracking brightness changes with distance to help distinguish intrinsic illumination from reflected sunlight. The model requires assumptions about luminosity, geometry, spectrum and albedo. They retain conventional variability from phase, surfaces, outgassing, rotation and binary effects, plus cloud and geometry limitations for exoplanets. Historical telescope forecasts and inconclusive null results limit the proposal. The paper reports no artificial-light detection or replicated experiment.
■ Complete supplied preprint text and ten native layouts; original-version gaps
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