3 papers
astro-ph.CO2026
The of Neutral Hydrogen: Increased CMB Optical Depth at Long Wavelengths
Gilbert Holder, Adrian Liu, Tzu-Ching Chang +1
At wavelengths longer than 21 cm, photons from the long-wavelength tail of the cosmic microwave background (CMB) have a non-zero probability of being absorbed by distant neutral hy…
astro-ph.CO2025
Cosmological information content of Betti curves and -nearest neighbor distributions
Aaron Ouellette, Gilbert Holder
We compare the cosmological constraints that can be obtained from halo clustering on non-linear scales ( Mpc < < Mpc) using Betti curves, a topological su…
astro-ph.HE2024
Cross-correlating IceCube neutrinos with a large set of galaxy samples around redshift z ~ 1
Aaron Ouellette, Gilbert Holder
The IceCube neutrino telescope has detected a diffuse flux of high-energy astrophysical neutrinos, but the sources of this flux have largely remained elusive. Using the 10-year Ice…