2nd Edition of the Workshop 'Quarkonia meet Dark Matter' (QMDM)

Session

Friday - Session 2

Mar 22, 2024, 11:10 AM

Auditorium (Institute for Advanced Study, Technical University of Munich)

106. Capture, Thermalization and Annihilation of Dark Matter in Neutron Stars

Sandra Robles (Fermilab)

3/22/24, 11:10 AM

Neutron stars (NSs) are promising cosmic laboratories to test the nature of dark matter (DM). DM captured by the strong gravitational field of these stellar remnants transfers its kinetic energy to the star through subsequent collisions with the star constituents. Further DM annihilation can add extra heating. This can produce anomalous heating of old neutron stars. While DM deposits its...

26. Dark matter heating vs. vortex creep heating in old neutron stars

Motoko Fujiwara (Technical University of Munich)

3/22/24, 11:45 AM

4. Gravitational waves, astrophysical and collider phenomenology

Dark matter can be captured in a neutron star and deposits its energy into a star. This dark matter heating effect, however, can be observed only if it dominates over other internal heating effects in neutron stars. In this work, as such an internal heating effect, we examine the frictional heating caused by the creep motion of neutron superfluid vortex lines in the neutron star crust. The...

46. Probing Dark Matter Interactions through White Dwarf Observations

Maura E. Ramirez-Quezada (Johannes-Gutenberg Universität Mainz)

3/22/24, 12:10 PM

4. Gravitational waves, astrophysical and collider phenomenology

The scattering of dark matter from stellar constituents leads to gravitational capture, with important observational consequences. In particular, white dwarf heating occurs due to the energy transfer in the dark matter capture and thermalisation processes, and the subsequent annihilation of captured dark matter. Here I will discuss the capture of dark matter, our study investigates a model...

33. The impact of dark matter on neutron stars and gravitational wave signals from their mergers

Violetta Sagun (University of Coimbra)

3/22/24, 12:35 PM

4. Gravitational waves, astrophysical and collider phenomenology

Compact stars due to their enormous gravitational field can accumulate a sizable amount of dark matter in their interior. Depending on its nature, accumulated dark matter may affect the properties of neutron stars in quite different ways. I will give an overview of the impact of dark matter on various observable properties of neutron stars, i.e. the mass-radius relation, tidal deformability,...

92. How Axions change the Stellar Landscape

Konstantin Springmann (Technische Universität München)

3/22/24, 1:00 PM