22 citations · 65 across the 9 of their papers we have counts for
7 papers · 1 filter
How X-rays heat the IGM in different 21-cm simulation codes: a comparison between Licorice and Beorn
Romain Meriot, Jonathan R. Pritchard, Timothée Schaeffer
Any interpretation of the 21-cm signal of neutral hydrogen using Bayesian inference methods can only be as accurate as the underlying simulation code used to model the state of the…
Testing common approximations to predict the 21cm signal at the Epoch of Reionization and Cosmic Dawn
Timothée Schaeffer, Sambit K. Giri, Aurel Schneider
Predicting the 21cm signal from the epoch of reionization and cosmic dawn is a complex and challenging task. Various simplifying assumptions have been applied over the last decades…
The 21-cm signal during the end stages of reionization
Sambit K. Giri, Michele Bianco, Timothée Schaeffer +3
During the epoch of reionization (EoR), the 21-cm signal allows direct observation of the neutral hydrogen (HI) in the intergalactic medium (IGM). In the post-reionization era, thi…
BEoRN: A fast and flexible framework to simulate the epoch of reionisation and cosmic dawn
Timothée Schaeffer, Sambit K. Giri, Aurel Schneider
In this study, we introduce BEoRN (Bubbles during the Epoch of Reionisation Numerical Simulator), a publicly available Python code that generates three-dimensional maps of the 21-c…
Cosmological forecast of the 21-cm power spectrum using the halo model of reionization
Aurel Schneider, Timothée Schaeffer, Sambit K. Giri
The 21-cm power spectrum of reionization is a promising probe for cosmology and fundamental physics. Exploiting this new observable, however, requires fast predictors capable of ef…
Dark acoustic oscillations: Imprints on the matter power spectrum and the halo mass function
Timothée Schaeffer, Aurel Schneider
Many non-minimal dark matter scenarios lead to oscillatory features in the matter power spectrum induced by interactions either within the dark sector or with particles from the st…
On the Possible Enhancement of the Global -cm Signal at Reionization from the Decay of Cosmic String Cusps
Robert Brandenberger, Bryce Cyr, Timothée Schaeffer
We consider cosmic string cusp annihilations as a possible source of enhancement to the global background radiation temperature in -cm photons at reionization. A soft photon sp…