{"paper":{"title":"The NuSTAR Extragalactic Surveys: Overview and Catalog from the COSMOS Field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Comastri, A. Del-Moro, B. Luo, B. W. Grefenstette, C. J. Hailey, C. Saez, D. M. Alexander, D. R. Ballantyne, D. R. Wik, D. Stern, E. Treister, F. A. Harrison, F. Civano, F. E. Bauer, F. E. Christensen, G. B. Lansbury, J. Aird, J. R. Mullaney, K. Forster, K. Madsen, L. Zappacosta, M. C. Urry, M. Elvis, P. Gandhi, R. C. Hickox, S. E. Boggs, S. M. LaMassa, S. Puccetti, W. N. Brandt, W. W. Craig, W. Zhang","submitted_at":"2015-11-13T06:42:48Z","abstract_excerpt":"To provide the census of the sources contributing to the X-ray background peak above 10 keV, NuSTAR is performing extragalactic surveys using a three-tier \"wedding cake\" approach. We present the NuSTAR survey of the COSMOS field, the medium sensitivity and medium area tier, covering 1.7 deg2 and overlapping with both Chandra and XMM-Newton data. This survey consists of 121 observations for a total exposure of ~3 Ms. To fully exploit these data, we developed a new detection strategy, carefully tested through extensive simulations. The survey sensitivity at 20% completeness is 5.9, 2.9 and 6.4 x"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04185","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"}