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Radio emission from a pulsar's magnetic pole revealed by general relativity

Authors :: Axel Jessner
Laura Kasian
Andrew Lyne
Kejia Lee
Ismaël Cognard
Michael Kramer
Gregory Desvignes
Ben Stappers
Ingrid H. Stairs
Joeri van Leeuwen
Unité Scientifique de la Station de Nançay (USN)
Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC)
Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris
Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris
Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)
Jodrell Bank Centre for Astrophysics (JBCA)
University of Manchester [Manchester]
Kavli Institute for Astronomy and Astrophysics [Beijing] (KIAA-PKU)
Peking University [Beijing]
Netherlands Institute for Radio Astronomy (ASTRON)
Department of Physics and Astronomy [Vancouver]
University of British Columbia (UBC)
Max-Planck-Institut
Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109))
PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Jodrell Bank Centre for Astrophysics
Institut national des sciences de l'Univers (INSU - CNRS)
High Energy Astrophys. & Astropart. Phys (API, FNWI)
Source :: Science, Science, American Association for the Advancement of Science, 2019, 365 (6457), pp.1013-1017. ⟨10.1126/science.aav7272⟩, Desvignes, G, Kramer, M, Lee, K, Van Leeuwen, J, Stairs, I, Jessner, A, Cognard, I, Kasian, L, Lyne, A & Stappers, B W 2019, ' Radio emission from a pulsar’s magnetic pole revealed by general relativity ', Science, vol. 365, no. 6457, pp. 1013-1017 . https://doi.org/10.1126/science.aav7272, Science, 365(6457), 1013-1017. American Association for the Advancement of Science
Publication Year :: 2019
Publisher :: HAL CCSD, 2019.
Abstract: Binary pulsars are affected by general relativity (GR), causing the spin axes of each pulsar to precess. We present polarimetric radio observations of PSR J1906+0746 that demonstrate the validity of the geometrical model of pulsar polarisation. We reconstruct the (sky-projected) polarisation emission map over the pulsar's magnetic pole and predict the disappearance of the detectable emission by 2028. Two additional tests of GR are performed in this system, including the spin-precession for strongly self-gravitating bodies. We constrain the relativistic treatment of the pulsar polarisation model and measure the pulsar beaming fraction, with implications for the population of neutron stars and the expected rate of neutron star mergers.<br />Published in Science 06 September 2019

Details

Language :: English
ISSN :: 00368075 and 10959203
Database :: OpenAIRE
Journal :: Science, Science, American Association for the Advancement of Science, 2019, 365 (6457), pp.1013-1017. ⟨10.1126/science.aav7272⟩, Desvignes, G, Kramer, M, Lee, K, Van Leeuwen, J, Stairs, I, Jessner, A, Cognard, I, Kasian, L, Lyne, A & Stappers, B W 2019, ' Radio emission from a pulsar’s magnetic pole revealed by general relativity ', Science, vol. 365, no. 6457, pp. 1013-1017 . https://doi.org/10.1126/science.aav7272, Science, 365(6457), 1013-1017. American Association for the Advancement of Science
Accession number :: edsair.doi.dedup.....1e6cbe30b50c8a8c4a5e4c6eba5bf2fc
Full Text :: https://doi.org/10.1126/science.aav7272⟩