Sixteenth Marcel Grossmann Meeting

Timing PSR J2222-0137 - an important new laboratory for relativistic gravity

7 Jul 2021, 09:30

25m

Talk in the parallel session Pulsar Power in Physics and Astrophysics and Pulsars and Pulsar Systems at High Energies Pulsar Power in Physics and Astrophysics and Pulsars and Pulsar Systems at High Energies

Speaker

Paulo Freire (Max-Planck-Institut fuer Radioastronomie)

Description

In this talk, I will review the current status of the timing of PSR J2222-0137, which promises to be one of the most important laboratories for testing the nature of gravitational waves, for limiting the variation of Newton's gravitational constant, and for testing non-perturbative deviations from general relativity in the behavior of gravity (in particular the phenomenon of ``spontaneous scalarization''). The occurrence of this phenomenon has been basically ruled out with our current measurements.