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36 papers · 2 filters
Self-supervised component separation for the extragalactic submillimeter sky
V. Bonjean, H. Tanimura, N. Aghanim +2
We use a new approach based on self-supervised deep learning networks originally applied to transparency separation in order to simultaneously extract the components of the extraga…
Promise of Future Searches for Cosmic Topology
Yashar Akrami, Stefano Anselmi, Craig J. Copi +12
The shortest distance around the Universe through us is unlikely to be much larger than the horizon diameter if microwave background anomalies are due to cosmic topology. We show t…
Primordial black holes from stochastic tunnelling
Chiara Animali, Vincent Vennin
If the inflaton gets trapped in a local minimum of its potential shortly before the end of inflation, it escapes by building up quantum fluctuations in a process known as stochasti…
Galaxy clusters enveloped by vast volumes of relativistic electrons
V. Cuciti, F. de Gasperin, M. Brueggen +12
The central regions of galaxy clusters are permeated by magnetic fields and filled with relativistic electrons. When clusters merge, the magnetic fields are amplified and relativis…
Candidate cosmic filament in the GJ526 field, mapped with the NIKA2 camera
J. -F. Lestrade, F. -X. Desert, G. Lagache +44
Distinctive large-scale structures have been identified in the spatial distribution of optical galaxies up to redshift z ~ 1. In the more distant universe, the relationship between…
Multi-probe analysis of the galaxy cluster CL J1226.9+3332: Hydrostatic mass and hydrostatic-to-lensing bias
M. Muñoz-Echeverría, J. F. Macías-Pérez, G. W. Pratt +50
The precise estimation of the mass of galaxy clusters is a major issue for cosmology. Large galaxy cluster surveys rely on scaling laws that relate cluster observables to their mas…