{"paper":{"title":"A Volume Limited Sample of Cataclysmic Variables from $\\mathit{Gaia}$ DR2: Space Density and Population Properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Aungwerojwit, A. F. Pala, B. T. G\\\"ansicke, C. J. Manser, C. Knigge, E. Breedt, E. Cukanovaite, E. Dennihy, I. Pelisoli, J. J. Hermes, M. A. Hollands, M. L. Pretorius, M. R. Schreiber, N. P. Gentile Fusillo, O. Toloza, S. Scaringi, S. Toonen, T. Naylor","submitted_at":"2019-07-30T18:01:23Z","abstract_excerpt":"We present the first volume-limited sample of cataclysmic variables (CVs), selected using the accurate parallaxes provided by the second data release (DR2) of the ESA $\\mathit{Gaia}$ space mission. The sample is composed of 42 CVs within $150\\,$pc, including two new systems discovered using the $\\mathit{Gaia}$ data, and is $(77 \\pm 10)\\,$per cent complete. We use this sample to study the intrinsic properties of the Galactic CV population. In particular, the CV space density we derive, $\\rho=(4.8^{+0.6}_{-0.8}) \\times10^{-6}\\,\\mathrm{pc}^{-3}$, is lower than predicted by most binary population "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.13152","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.13152/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}