The presentation discusses material analyses and isotope measurements, with contamination, repeat-analysis and incomplete-value qualifications. Unusual isotope ratios alone do not establish extraterrestrial origin or authenticated custody.
Amir Siraj, Abraham Loeb. arxiv.org. June 7, 2019.
Siraj and Loeb combine reported detections and non-detection limits to propose meteor trajectory, spectroscopy and sample tests. The administrator flags substantial text overlap with their earlier meteor paper; IM1 and Oumuamua are reused. The allowed slope range is not a demonstrated confidence interval. Camera coverage, parent-star association, isotopes and sample recovery are forecasts, rather than achieved results. Ordinary alternatives and source discrepancies remain.
■ Received preprint text and native layouts; overlap and original gaps
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