3 papers
astro-ph.CO2025
On distance and velocity estimation in cosmology
Adi Nusser
Scatter in distance indicators introduces two conceptually distinct systematic biases when reconstructing peculiar velocity fields from redshifts and distances. The first is distan…
astro-ph.CO2025
Probing the Dark Sector using the Fornax Satellite
Eyal Zamlung, Adi Nusser
A long-range force acting only in the dark sector can displace the stellar component of satellite galaxies relative to their dark matter (DM) halos, thereby \emph{breaking} the wea…
astro-ph.CO2025
Estimating cluster masses: a comparative study between machine learning and maximum likelihood
Raeed Mundow, Adi Nusser
We compare an autoencoder convolutional neural network (AE-CNN) with a conventional maximum-likelihood estimator (MLE) for inferring cluster virial masses, , directly from the…