{"paper":{"title":"Probing the dark matter radial profile in lens galaxies and the size of X-ray emitting region in quasars with microlensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"2), 2) Departamento de F\\'isica Te\\'orica y del Cosmos e Instituto Carlos I, (3, 4), 4) Instituto de Astrof\\'isica de Canarias y Departamento de Astrof\\'isica de la Universidad de La Laguna, (5) Department of Astronomy, (6, 7) ((1, 7) Departamento de Astronom\\'ia y Astrof\\'isica y Observatorio Astron\\'omico, AstroParticle Physics, C. S. Kochanek (5), E. Mediavilla (3, J. A. Mu\\~noz (6, J. Jim\\'enez-Vicente (1, Spain, Spain), Tenerife, the Center for Cosmology, The Ohio State University, Universidad de Granada, Universidad de Valencia, Valencia","submitted_at":"2015-02-02T08:20:44Z","abstract_excerpt":"We use X-ray and optical microlensing measurements to study the shape of the dark matter density profile in the lens galaxies and the size of the (soft) X-ray emission region. We show that single epoch X-ray microlensing is sensitive to the source size. Our results, in good agreement with previous estimates, show that the size of the X-ray emission region scales roughly linearly with the black hole mass, with a half light radius of $R_{1/2}\\simeq(24\\pm14) r_g$ where $r_g=GM_{BH}/c^2$. This corresponds to a size of $\\log(R_{1/2}/cm)=15.6^{+0.3}_{-0.3}$ or $\\sim$ 1 light day for a black hole mas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00394","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}