دورية أكاديمية
Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
| العنوان: | Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season |
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| المؤلفون: | Ade, P.A.R., Ahmed, Z., Amiri, M., Barkats, D., Thakur, R. Basu, Beck, D., Bischoff, C.A., Bock, J.J., Boenish, H., Bullock, E., Buza, V., Cheshire, J.R., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A., Denison, E.V., Dierickx, M., Duband, L., Eiben, M., Fatigoni, S., Filippini, J.P., Fliescher, S., Goeckner-Wald, N., Goldfinger, D.C., Grayson, J., Grimes, P., Halal, G., Hall, G., Halpern, M., Hand, E., Harrison, S., Henderson, S., Hildebrandt, S.R., Hilton, G.C., Hubmayr, J., Hui, H., Irwin, K.D., Kang, J., Karkare, K.S., Karpel, E., Kefeli, S., Kernasovskiy, S.A., Kovac, J.M., Kuo, C.L., Lau, K., Leitch, E.M., Lennox, A., Megerian, K.G., Minutolo, L., Moncelsi, L., Nakato, Y., Namikawa, T., Nguyen, H.T., O'Brient, R., Ogburn, R.W., Palladino, S., Prouve, T., Pryke, C., Racine, B., Reintsema, C.D., Richter, S., Schillaci, A., Schmitt, B.L., Schwarz, R., Sheehy, C.D., Soliman, A., Germaine, T. St, Steinbach, B., Sudiwala, R.V., Teply, G.P., Thompson, K.L., Tolan, J.E., Tucker, C., Turner, A.D., Umilta, C., Verges, C., Vieregg, A.G., Wandui, A., Weber, A.C., Wiebe, D.V., Willmert, J., Wong, C.L., Wu, W.L.K., Yang, H., Yoon, K.W., Young, E., Yu, C., Zeng, L., Zhang, C., Zhang, S. |
| المساهمون: | Cardiff University, SLAC National Accelerator Laboratory (SLAC), Stanford University, University of British Columbia (UBC), Harvard-Smithsonian Center for Astrophysics (CfA), Harvard University-Smithsonian Institution, California Institute of Technology (CALTECH), University of Cincinnati (UC), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), University of Minnesota Twin Cities (UMN), University of Minnesota System (UMN), University of Chicago, National Institute of Standards and Technology Boulder (NIST), Département des Systèmes Basses Températures (DSBT ), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), University of Illinois at Urbana-Champaign Urbana (UIUC), University of Illinois System, Laboratoire des Cryoréfrigérateurs et Cryogénie Spatiale (LCCS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), BICEP, Keck |
| المصدر: | ISSN: 0031-9007. |
| بيانات النشر: | HAL CCSD American Physical Society |
| سنة النشر: | 2021 |
| المجموعة: | HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
| مصطلحات موضوعية: | gravitational radiation: primordial, cosmic background radiation: polarization, BICEP, satellite: Planck, noise, WMAP, synchrotron, power spectrum, cosmological model: dust, cosmological model: parameter space, statistical analysis: confidence limit, gravitation: lens, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| الوصف: | International audience ; We present results from an analysis of all data taken by the BICEP2, Keck Array, and BICEP3 CMB polarization experiments up to and including the 2018 observing season. We add additional Keck Array observations at 220 GHz and BICEP3 observations at 95 GHz to the previous 95 / 150 / 220 GHz dataset. The Q / U maps now reach depths of 2.8, 2.8, and 8.8 μ K CMB arcmin at 95, 150, and 220 GHz, respectively, over an effective area of ≈ 600 square degrees at 95 GHz and ≈ 400 square degrees at 150 and 220 GHz. The 220 GHz maps now achieve a signal-to-noise ratio on polarized dust emission exceeding that of Planck at 353 GHz. We take auto- and cross-spectra between these maps and publicly available WMAP and Planck maps at frequencies from 23 to 353 GHz and evaluate the joint likelihood of the spectra versus a multicomponent model of lensed Λ CDM + r + dust + synchrotron + noise . The foreground model has seven parameters, and no longer requires a prior on the frequency spectral index of the dust emission taken from measurements on other regions of the sky. This model is an adequate description of the data at the current noise levels. The likelihood analysis yields the constraint r 0.05 < 0.036 at 95% confidence. Running maximum likelihood search on simulations we obtain unbiased results and find that σ ( r ) = 0.009 . These are the strongest constraints to date on primordial gravitational waves. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/2110.00483; hal-03380646; https://hal.science/hal-03380646Test; https://hal.science/hal-03380646/documentTest; https://hal.science/hal-03380646/file/2110.00483.pdfTest; ARXIV: 2110.00483; INSPIRE: 1938051 |
| DOI: | 10.1103/PhysRevLett.127.151301 |
| الإتاحة: | https://doi.org/10.1103/PhysRevLett.127.151301Test https://hal.science/hal-03380646Test https://hal.science/hal-03380646/documentTest https://hal.science/hal-03380646/file/2110.00483.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.33D6ECE |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevLett.127.151301 |
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