Orateur
Pearl Sandick
(Thoery Group and Texas Cosmology Center, the University of Texas at Austin)
Description
The very first stars likely formed from metal-free, molecular hydrogen-cooled gas at the center of dark matter minihalos. Prior to nuclear fusion, these stars may have been supported by dark matter heating from annihilations in the star. As the dark matter fuel supply became depleted, nuclear fusion and standard stellar evolution would have begun, and today the objects that began their lives as so-called Dark Stars would exist as a population of remnant intermediate mass black holes surrounded by dark matter spikes. Here we explore the signatures of dark matter annihilations in the dark matter spikes surrounding these black holes for a range of dark star formation scenarios, black hole masses, and dark matter annihilation modes.
Author
Pearl Sandick
(Thoery Group and Texas Cosmology Center, the University of Texas at Austin)
Co-auteurs
Douglas Spolyar
(Center for Particle Astrophysics, Fermi National Accelerator Laboratory)
Juerg Diemand
(Institute for Theoretical Physics, University of Zurich)
Katherine Freese
(Michigan Center for Theoretical Physics, University of Michigan)
