{"paper":{"title":"Euclid: Covariance of weak lensing pseudo-$C_\\ell$ estimates. Calculation, comparison to simulations, and dependence on survey geometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","stat.AP"],"primary_cat":"astro-ph.CO","authors_text":"A. Amara, A. Cimatti, A. Da Silva, A. Ealet, A. Hall, A. Hornstrup, A. Kiessling, A. Loureiro, A.N. Taylor, A. Renzi, A. Secroun, B. Garilli, B. Gillis, B. Joachimi, B. Sartoris, C.A.J. Duncan, C. Carbone, C. Giocoli, C. Padilla, C. Sirignano, D. Bonino, D. Tavagnacco, E. Branchini, E. Franceschi, E. Munari, E. Rossetti, E. Sellentin, F. Dubath, F. Grupp, F. Hormuth, F. Marulli, F. Pasian, F. Raison, F. Torradeflot, G. Congedo, G. Fabbian, G. Meylan, G. Polenta, G. Seidel, G. Sirri, G. Zamorani, H. Degaudenzi, H. Hoekstra, H. Kurki-Suonio, I. Lloro, I. Tereno, J. Brinchmann, J. Carretero, J.-L. Starck, J. Rhodes, J. Zoubian, K. Jahnke, K. Markovic, K. Pedersen, L. Conversi, L. Corcione, L. Moscardini, L. Popa, L. Stanco, L. Valenziano, L. Whittaker, M. Baldi, M. Brescia, M. Castellano, M. Cropper, M. Douspis, M. Frailis, M. Fumana, M. Kilbinger, M. K\\\"ummel, M. Kunz, M.L. Brown, M. Meneghetti, M. Moresco, M. Poncet, N. Auricchio, O. Marggraf, P. B. Lilje, P. Fosalba, P. Schneider, P. Tallada-Cresp\\'i, R. Cledassou, R.E. Upham, R. Saglia, R. Toledo-Moreo, S. Andreon, S. Camera, S. Cavuoti, S. Dusini, S. Farrens, S. Ferriol, S. Kermiche, S. Ligori, S.M. Niemi, S. Paltani, S. Pires, S.V.H. Haugan, T. Kitching, V. Capobianco, V.F. Cardone, V. Pettorino, W. Holmes, X. Dupac, Y. Copin, Y. Wang","submitted_at":"2021-12-14T12:56:18Z","abstract_excerpt":"An accurate covariance matrix is essential for obtaining reliable cosmological results when using a Gaussian likelihood. In this paper we study the covariance of pseudo-$C_\\ell$ estimates of tomographic cosmic shear power spectra. Using two existing publicly available codes in combination, we calculate the full covariance matrix, including mode-coupling contributions arising from both partial sky coverage and non-linear structure growth. For three different sky masks, we compare the theoretical covariance matrix to that estimated from publicly available N-body weak lensing simulations, finding"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.07341","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/2112.07341/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"}