{"paper":{"title":"Solving the puzzle of discrepant quasar variability on monthly time-scales implied by SDSS and CRTS data sets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"(2) Harvard-Smithsonian Center for Astrophysics, (3) Center for Data-Driven Discovery, 4), (4) National Optical Astronomy Observatory, (5) Max Planck Institute for Astronomy, AZ 85719, Branimir Sesar (5) ((1) Department of Astronomy, CA 91125, California Institute of Technology, Cambridge, Chelsea L. MacLeod (2), D-69117 Heidelberg, Germany), K\\\"onigstuhl 17, Krzysztof Suberlak (1), MA 02138, Matthew Graham (3, Pasadena, Seattle, Tucson, University of Washington, USA, \\v{Z}eljko Ivezi\\'c (1), WA 98195","submitted_at":"2017-12-05T19:00:03Z","abstract_excerpt":"We present an improved photometric error analysis for the 7,100 CRTS (Catalina Real-Time Transient Survey) optical light curves for quasars from the SDSS (Sloan Digital Sky Survey) Stripe 82 catalogue. The SDSS imaging survey has provided a time-resolved photometric data set which greatly improved our understanding of the quasar optical continuum variability: Data for monthly and longer time-scales are consistent with a damped random walk (DRW). Recently, newer data obtained by CRTS provided puzzling evidence for enhanced variability, compared to SDSS results, on monthly time-scales. Quantitat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01848","kind":"arxiv","version":1},"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"}