{"paper":{"title":"Selection and Mid-infrared Spectroscopy of Ultraluminous Star-Forming Galaxies at z~2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Guanwen Fang, Jia-Sheng Huang, S. P. Willner, Tao Wang, Xuanbin Lin, Xu Kong, Yang Chen","submitted_at":"2014-01-23T18:35:18Z","abstract_excerpt":"Starting from a sample of 24 \\micron\\ sources in the Extended Groth Strip, we use 3.6 to 8 \\micron\\ color criteria to select ultraluminous infrared galaxies (ULIRGs) at $z\\sim2$. Spectroscopy from 20-38 \\micron\\ of 14 objects verifies their nature and gives their redshifts. Multi-wavelength data for these objects imply stellar masses ${>}10^{11}$ \\Msun\\ and star formation rates $\\ge$410 \\Msun yr$^{-1}$. Four objects of this sample observed at 1.6 \\micron\\ (rest-frame visible) with {\\it HST}/WFC3 show diverse morphologies, suggesting that multiple formation processes create ULIRGs. Four of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.6091","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"}