{"paper":{"title":"The APOGEE-2 Survey of the Orion Star Forming Complex: I. Target Selection and Validation with early observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. Roman-Lopes, Carlos Rom\\'an-Z\\'u\\~niga, Christian Nitschelm, David L. Nidever, Edward Schlafly, Eric Feigelson, Eugene Magnier, Gail Zasowski, Genaro Su\\'arez, Guy S. Stringfellow, Jason E. Ybarra, Jeff Valenti, Jesus Hernandez, J'Neil Cottle, J. Serena Kim, Juan Jose Downes, Jura Borissova, Kaike Pan, Keivan Stassun, Ken Chambers, Kevin R. Covey, Konstantin Getman, Marina Kounkel, Matthew Shetrone, Nathan De Lee, Nicola Da Rio, Peter M. Frinchaboy, Ronald E. Mennickent, Steven R. Majewski","submitted_at":"2018-04-17T22:08:20Z","abstract_excerpt":"The Orion Star Forming Complex (OSFC) is a central target for the APOGEE-2 Young Cluster Survey. Existing membership catalogs span limited portions of the OSFC, reflecting the difficulty of selecting targets homogeneously across this extended, highly structured region. We have used data from wide field photometric surveys to produce a less biased parent sample of young stellar objects (YSOs) with infrared (IR) excesses indicative of warm circumstellar material or photometric variability at optical wavelengths across the full 420 square degrees extent of the OSFC. When restricted to YSO candida"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.06484","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"}