{"paper":{"title":"A new probe of the small-scale primordial power spectrum: astrometric microlensing by ultracompact minihalos","arxiv_id":"1202.1284","primary_cat":"astro-ph.CO","submitted_at":"2012-02-06T21:00:06+00:00","version_compiled":"v2"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13-20260917 on the question bank abstract-p1-20260923, exactly as returned. 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