Contributed Talk - Splinter Relativistic

Friday, 25 September 2020, 12:00   (virtual room J)

Constraining the dense matter EOS and testing higher-order GR effects with the Double Pulsar

Huanchen Hu, Michael Kramer, Norbert Wex, David J. Champion, Marcel S. Kehl
Max-Planck-Institut für Radioastronomie

Mass measurements in binary pulsar systems have already provided significant contributions to our understanding of the equation of state (EOS) of ultra-dense matter. The measurement of the moment of inertia (MOI) of a binary pulsar would provide important additional constraints. The Double Pulsar, PSR J0737-3039A/B, is the most promising system for such a measurement via high-precision pulsar timing. In this talk, I will introduce this method and present our predictions of the MOI measurement for PSR J0737-3039A in the next ten years, based on simulated data for the MeerKAT telescope and the upcoming SKA1. Furthermore, I will discuss potential constraints on the Lense-Thirring precession and next-to-leading order gravitational wave damping effects in the Double Pulsar, under the assumption that the EOS is sufficiently well known by 2030 from other observations, like LIGO/Virgo and NICER.