annihilation constraints 1cross-correlation analysis 1dark matter 1galaxy shape correlations 1gamma-ray background 1
From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.CO2026
Constraints on Annihilating Dark Matter from Gamma-Ray Background-Galaxy Shape Correlations: Model-independent Null Results and Moderate Template-based Signals
Masato Shirasaki, Deheng Song, Oscar Macias +2
The paper uses cross‑correlations between the unresolved gamma‑ray background measured by Fermi‑LAT and galaxy shape data from DES Y3 and DECADE to place limits on dark‑matter anni…
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.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…