3 papers
astro-ph.CO2026
Probing small-scale dark matter clumping with the large-scale 21-cm power spectrum
Sudipta Sikder, Hyunbae Park, Rennan Barkana +2
The 21-cm line of hydrogen is the most promising probe of the Dark Ages and Cosmic Dawn. We combine hydrodynamical simulations with a large-scale grid in order to calculate the eff…
astro-ph.IM2025
Nyx-RT: Adaptive Ray Tracing in the Nyx Hydrodynamical Code
Nathan X. Marshak, Kathlynn Simotas, Zarija LukiÄ +3
Numerical methods for radiative transfer play a key role in modern-day astrophysics and cosmology, including study of the inhomogeneous reionization process. In this context, ray t…
astro-ph.CO2025
The Signature of Sub-galactic Dark Matter Clumping in the Global 21-cm Signal of Hydrogen
Hyunbae Park, Rennan Barkana, Naoki Yoshida +3
It is thought that the Universe went through an early period known as the Dark Ages, during which primeval density fluctuations grew to form the first luminous objects, marking the…