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
John C. Forbes, Abraham Loeb. arxiv.org. January 2, 2019.
Forbes and Loeb forecast near-Sun interstellar-body encounters and propose spectroscopy. Encounter rates and candidate probabilities depend on uncertain density, orientation, population and detection assumptions. Listed probabilities do not confirm individual origins. Ordinary cometary explanations, bound-orbit caveats and an ISON non-detection remain explicit. Parameter and catalogue-filter discrepancies are unresolved. Forbes’s fellowship is distinct from work-level grant support; neither establishes government access.
■ Received written text and native layouts; original-record and interpretation gaps
Amir Siraj, Abraham Loeb. arxiv.org. February 4, 2019.
Siraj and Loeb model captured interstellar minor-body orbits using inherited density, population and size assumptions. Eight catalogue objects are possible candidates, not confirmed interstellar origins or extraterrestrial artifacts. Native Oort-cloud bodies are an explicit confound. Model convergence and forecasts do not supply independent observations. Native table, selection and population-normalization qualifications remain unresolved; detection bias and original calculation gaps are preserved. Manuscript assistance and work-level funding do not establish government tasking or custody.
■ All six supplied preprint pages and native layouts; candidate and model qualifications
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