Radio emission from a pulsar’s magnetic pole revealed by general relativity-Reference-Cited by-同舟云学术

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

Published:2019-09-06 Issue:6457 Volume:365 Page:1013-1017
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Desvignes Gregory¹²^ORCID,Kramer Michael¹³^ORCID,Lee Kejia⁴^ORCID,van Leeuwen Joeri⁵⁶^ORCID,Stairs Ingrid⁷^ORCID,Jessner Axel¹^ORCID,Cognard Ismaël⁸⁹,Kasian Laura⁷^ORCID,Lyne Andrew³^ORCID,Stappers Ben W.³^ORCID

Affiliation:

1. Max-Planck-Institut für Radioastronomie, Auf dem Hügel, 69 D-53121 Bonn, Germany.

2. Laboratoire d’Études Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, Université Paris-Sciences-et-Lettres, Centre National de la Recherche Scientifique, Sorbonne Université, Université de Paris, 5 place Jules Janssen, 92195 Meudon, France.

3. Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, UK.

4. Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People’s Republic of China.

5. ASTRON, The Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA Dwingeloo, Netherlands.

6. Astronomical Institute Anton Pannekoek, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands.

7. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada.

8. Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, Centre National de la Recherche Scientifique–Université d’Orléans, F-45071 Orléans, France.

9. Station de radioastronomie de Nançay, Observatoire de Paris, Centre National de la Recherche Scientifique, Institut national des sciences de l’Univers, F-18330 Nançay, France.

Abstract

General relativity reveals pulsar beams Pulsars are rotating neutron stars that emit beams of radio waves along their magnetic poles, seen as regular pulses if the beam points toward Earth. Desvignes et al. monitored a pulsar for more than a decade, observing how its radio pulses vary. General relativity causes precession of the rotation axis, because of the influence of a binary companion. In 2005, two pulses per rotation were visible, one from each magnetic pole, but by 2018 one had precessed out of our line of sight and disappeared. Mapping the radio emission across the magnetic pole determines the beaming angle, the angular region in which a radio observer can detect a pulsar. Science , this issue p. 1013

Funder

Science and Technology Facilities Council

European Research Council

National Basic Research Program of China

NSFC

Max-Planck Partner Group

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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