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SMuK 2023 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 12: Relativistic Astrophysics and Scalar Fields

GR 12.1: Vortrag

Donnerstag, 23. März 2023, 14:00–14:20, ZEU/0260

Testing scalar-tensor gravity with radio pulsars — •Alexander Batrakov1, Huanchen Hu1, Norbert Wex1, Paulo Freire1, Vivek Venkatraman Krishnan1, and Michael Kramer1,21Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany — 2Jodrell Bank Centre for Astrophysics, The University of Manchester, M13 9PL, United Kingdom

The talk will highlight some of the latest results in testing the strong-field aspects of scalar-tensor gravity (STG) with radio pulsars, which include spontaneous scalarization, dipolar radiation, and the violation of the universality of free fall by strongly self-gravitating bodies. Some of these results are based on a new timing model that provides a fully consistent analysis of pulsar timing data for certain classes of STG theories.

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