{"paper":{"title":"2022 Upgrade and Improved Low Frequency Camera Sensitivity for CMB Observation at the South Pole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A.C. Weber, A.D. Turner, A.G. Vieregg, A.J. Cukierman, A. Lennox, A. Schillaci, A. Soliman, A. Wandui, B.L. Schmitt, B. Racine, B. Singari, B. Steinbach, C.A. Bischoff, C.D. Reintsema, C. Giannakopoulos, C.L. Kuo, C. Pryke, C. Tsai, C. Tucker, C. Umilt\\`a, C. Verg\\`es, C. Yu, C. Zhang, D. Barkats, D. Beck, D.C. Goldfinger, D.V. Wiebe, E. Hand, E.M. Leitch, E.V. Denison, E. Young, G.C. Hilton, G. Halal, G. Hall, H. Hui, H.T. Nguyen, H. Yang, J. Cheshire, J. Connors, J. Cornelison, J. Grayson, J. Hubmayr, J.J. Bock, J. Kangh, J.M. Kovac, J.P. Filippini, J. Willmert, K.D. Irwin, K.G. Megerian, K. Lau, K.L. Thompson, K.S. Karkare, K.W. Yoon, L. Duband, L. Minutolo, L. Moncelsi, L. Zeng, M. Amiri, M.A. Petroff, M. Crumrine, M. Eiben, M. Halpern, M.I. Dierickx, M. Salatino, N. Goeckner-Wald, N. Precup, P.A.R. Ade, P.K. Grimes, R. Basu Thakur, R. O'Brient, R.V. Sudiwala, S.A. Harrison, S. Fatigoni, S. Henderson, S. Kefeli, S. Palladino, S.R. Hildebrandt, S. Zhang, T. Liu, T. Namikawa, T. Prouve, T. St. Germaine, V. Buza, W.L.K. Wu, Y. Nakato, Z. Ahmed","submitted_at":"2022-08-01T18:28:24Z","abstract_excerpt":"Constraining the Galactic foregrounds with multi-frequency Cosmic Microwave Background (CMB) observations is an essential step towards ultimately reaching the sensitivity to measure primordial gravitational waves (PGWs), the sign of inflation after the Big-Bang that would be imprinted on the CMB. The BICEP Array telescope is a set of multi-frequency cameras designed to constrain the energy scale of inflation through CMB B-mode searches while also controlling the polarized galactic foregrounds. The lowest frequency BICEP Array receiver (BA1) has been observing from the South Pole since 2020 and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.01080","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2208.01080/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"}