{"paper":{"title":"$\\textit{Gaia}$ white dwarfs within 40 pc I: spectroscopic observations of new candidates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Nitta, A. Rebassa-Mansergas, B. T. G\\\"ansicke, C. J. Manser, D. de Martino, D. Koester, E. Cukanovaite, I. Pelisoli, J. Farihi, J. J. Hermes, J.-J. Ren, J. McCleery, M. A. Hollands, M. J. Hoskin, M. R. Schreiber, N. Giammichele, N. P. Gentile Fusillo, O. Toloza, P.-E. Tremblay, P. Izquierdo, R. Raddi, R. Silvotti, S. Charpinet, S. G. Parsons, S. J. Kleinman, S. Jordan, S. O. Kepler, S. Toonen, S. Torres, T. Cunningham, T. R. Marsh, V. Van Grootel, W. R. Brown","submitted_at":"2020-06-01T14:22:10Z","abstract_excerpt":"We present a spectroscopic survey of 230 white dwarf candidates within 40 pc of the Sun from the William Herschel Telescope and Gran Telescopio Canarias. All candidates were selected from $\\textit{Gaia}$ Data Release 2 (DR2) and in almost all cases had no prior spectroscopic classifications. We find a total of 191 confirmed white dwarfs and 39 main-sequence star contaminants. The majority of stellar remnants in the sample are relatively cool ($\\langle T_{\\rm eff} \\rangle$ = 6200 K), showing either hydrogen Balmer lines or a featureless spectrum, corresponding to 89 DA and 76 DC white dwarfs, r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.00965","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.00965/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"}