RAGtime 24

Session

Neutron Stars

11 Oct 2022, 14:30

Opava

Conveners

Neutron Stars

• Maciek Wielgus (Black Hole Initiative, Harvard)

11. Binary Neutron Stars: from macroscopic collisions to microphysics

Luciano Rezzolla (Goethe University of Frankfurt)

11/10/2022, 14:30

Keynote talk

I will argue that if black holes represent one the most fascinating implications of Einstein's theory of gravity, neutron stars in binary system are arguably its richest laboratory, where gravity blends with astrophysics and particle physics. I will discuss the rapid recent progress made in modelling these systems and show how the gravitational signal can provide tight constraints on the...

52. The power of weakly magnetized neutron stars

Wlodek Kluzniak

11/10/2022, 15:10

Keynote talk

Weakly magnetized stars lead much more interesting and active lives than their more glamorous cousins (the magnetars and canonical TeraGauss radio and X-ray pulsars), accreting huge amounts of mass and angular momentum, emitting copious amounts of power in energetic particles and quanta, and destroying their companions. I will give a short overview of the highlights of their observed history,...

50. Measuring mass and radius of neutron star using kHz QPOs.

Martin Urbanec

11/10/2022, 15:40

Talk

We report our recent results on measuring mass and radius using kHz quasi-periodic oscillations. We focus on the mass and radius of 4U1608-52 where independent measurement comes from X-ray bursts. We show that the cusp-torus model is preferred over the relativistic precession model. The cusp torus model gives better fits to the observed frequencies and predicts values of mass and radius that...