| dc.contributor.author | Diego Palazuelos, Patricia | |
| dc.contributor.author | Eskilt, Johannes Røsok | |
| dc.contributor.author | Minami, Yasui | |
| dc.contributor.author | Trsitam, Matthieu | |
| dc.contributor.author | Sullivan, Raelyn M. | |
| dc.contributor.author | Banday, A. J. | |
| dc.contributor.author | Barreiro Vilas, Rita Belén | |
| dc.contributor.author | Eriksen, Hans Kristian Kamfjord | |
| dc.contributor.author | Górski, Krzysztof M. | |
| dc.contributor.author | Keskitalo, Reijo | |
| dc.contributor.author | Komatsu, Eiichiro | |
| dc.contributor.author | Martínez González, Enrique | |
| dc.contributor.author | Scott, Douglas | |
| dc.contributor.author | Vielva Martínez, Patricio | |
| dc.contributor.author | Wehus, Ingunn Kathrine | |
| dc.contributor.other | Universidad de Cantabria | es_ES |
| dc.date.accessioned | 2023-12-19T08:51:12Z | |
| dc.date.available | 2023-12-19T08:51:12Z | |
| dc.date.issued | 2022-03-01 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.issn | 1079-7114 | |
| dc.identifier.other | PID2019-110610RB-C21 | es_ES |
| dc.identifier.other | ESP2017-83921-C2-1-R | es_ES |
| dc.identifier.other | AYA2017-90675-REDC | |
| dc.identifier.uri | https://hdl.handle.net/10902/30890 | |
| dc.description.abstract | We search for the signature of parity-violating physics in the cosmic microwave background, called
cosmic birefringence, using the Planck data release 4. We initially find a birefringence angle of
B= 0.30° + - 0.11° (68% C.L.) for nearly full-sky data. The values of B decrease as we enlarge the
Galactic mask, which can be interpreted as the effect of polarized foreground emission. Two independent
ways to model this effect are used to mitigate the systematic impact on B for different sky fractions. We
choose not to assign cosmological significance to the measured value of B until we improve our knowledge
of the foreground polarization. | es_ES |
| dc.description.sponsorship | We thank D. J. Watts, S. Clark and J. C. Hill for useful discussions and B. Partridge for comments on the draft. Planck is a project of the European Space Agency (ESA) with instruments provided by two scientific consortia funded by ESA member states and led by Principal Investigators from France and Italy, telescope reflectors provided through a collaboration between ESA and a scientific consortium led and funded by Denmark, and additional contributions from NASA (USA). Some of the results in this Letter have been derived using the healpix package. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. Part of the research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). J. R. E., H. K. E., and I. W. acknowledge funding from the European Research Council (ERC) under the Horizon 2020 Research and Innovation Programme (Grant Agreement No. 819478). The work of Y. M. was supported in part by the Japan Society for the Promotion of Science (JSPS) KAKENHI, Grants No. JP20K14497. R. S. and D. S. acknowledge the support of the Natural Sciences and Engineering Research Council of Canada. P. D.-P. acknowledges financial support from the Formación del Profesorado Universitario (FPU) Programme of the Spanish Ministerio de Ciencia, Innovación y Universidades, and thanks the Max Planck Institute for Astrophysics for hospitality when this work was being finalized. P. D.-P., B. B., E. M.-G., and P. V. thank the Spanish Agencia Estatal de Investigación (AEI, MICIU) for the financial support provided under the projects with references PID2019-110610RB-C21, ESP2017-83921-C2-1-R and AYA2017-90675-REDC, co-funded with EU FEDER funds, and acknowledge supports from Universidad de Cantabria and Consejería de Universidades, Igualdad, Cultura y Deporte del Gobierno de Cantabria via the “Instrumentación y ciencia de datos para sondear la naturaleza del universo” project, as well as from Unidad de Excelencia María de Maeztu (MDM-2017-0765). The work of E. K. was supported in part by JSPS KAKENHI Grants No. JP20H05850 and No. JP20H05859, and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2094–390783311. The Kavli I. P. M. U. is supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. | es_ES |
| dc.format.extent | 7 p. | es_ES |
| dc.language.iso | eng | es_ES |
| dc.publisher | American Physical Society | es_ES |
| dc.rights | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. | es_ES |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
| dc.source | Physical Review Letters, 2022, 128(9), 091302 | es_ES |
| dc.title | Cosmic birefringence from the Planck data release 4 | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |
| dc.relation.publisherVersion | https://doi.org/10.1103/PhysRevLett.128.091302 | es_ES |
| dc.rights.accessRights | openAccess | es_ES |
| dc.identifier.DOI | 10.1103/PhysRevLett.128.091302 | |
| dc.type.version | acceptedVersion | es_ES |
Excepto si se señala otra cosa, la licencia del ítem se describe como Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.
