265 citations · 361 across the 14 of their papers we have counts for
6 papers · 1 filter
The primordial magnetic field in our cosmic backyard
Sebastian Hutschenreuter, Sebastian Dorn, Jens Jasche +4
We reconstruct the 3D structure of magnetic fields, which were seeded by density perturbations during the radiation dominated epoch of the Universe and later on were evolved by str…
Cosmic expansion history from SNe Ia data via information field theory -- the charm code
Natàlia Porqueres, Torsten A. Enßlin, Maksim Greiner +4
We present charm (cosmic history agnostic reconstruction method), a novel inference algorithm that reconstructs the cosmic expansion history as encoded in the Hubble parameter $H(z…
All-sky reconstruction of the primordial scalar potential from WMAP temperature data
Sebastian Dorn, Maksim Greiner, Torsten A. Enßlin
An essential quantity required to understand the physics of the early Universe, in particular the inflationary epoch, is the primordial scalar potential and its statistics. We…
Generic inference of inflation models by local non-Gaussianity
Sebastian Dorn, Erandy Ramirez, Kerstin E. Kunze +2
The presence of multiple fields during inflation might seed a detectable amount of non-Gaussianity in the curvature perturbations, which in turn becomes observable in present data…
Generic inference of inflation models by non-Gaussianity and primordial power spectrum reconstruction
Sebastian Dorn, Erandy Ramirez, Kerstin E. Kunze +2
We present a generic inference method for inflation models from observational data by the usage of higher-order statistics of the curvature perturbation on uniform density hypersur…
Fast and precise way to calculate the posterior for the local non-Gaussianity parameter from cosmic microwave background observations
Sebastian Dorn, Niels Oppermann, Rishi Khatri +2
We present an approximate calculation of the full Bayesian posterior probability distribution for the local non-Gaussianity parameter from observations of cosmic mi…