233 citations · 3.7k across the 79 of their papers we have counts for
7 papers · 1 filter
On the local variation of the Hubble constant
Io Odderskov, Steen Hannestad, Troels Haugbølle
We have carefully studied how local measurements of the Hubble constant, , can be influenced by a variety of different parameters related to survey geometry, depth, and size,…
Halo abundances and shear in void models
David Alonso, Juan García-Bellido, Troels Haugboelle +1
We study the non-linear gravitational collapse of dark matter into halos through numerical N-body simulations of Lemaitre-Tolman-Bondi void models. We extend the halo mass function…
Neutrinos in Non-linear Structure Formation - a Simple SPH Approach
Steen Hannestad, Troels Haugbølle, Christian Schultz
We present a novel method for implementing massive neutrinos in N-body simulations. Instead of sampling the neutrino velocity distribution by individual point particles we take neu…
The effect of peculiar velocities on supernova cosmology
Tamara M Davis, Lam Hui, Joshua A Frieman +11
We present an analysis of peculiar velocities and their effect on supernova cosmology. In particular, we study (a) the corrections due to our own motion, (b) the effects of correla…
Large scale structure simulations of inhomogeneous LTB void models
David Alonso, Juan Garcia-Bellido, Troels Haugboelle +1
We perform numerical simulations of large scale structure evolution in an inhomogeneous Lemaitre-Tolman-Bondi (LTB) model of the Universe. We follow the gravitational collapse of a…
Residual Hubble-bubble effects on supernova cosmology
Benjamin Sinclair, Tamara M. Davis, Troels Haugbolle
Even in a universe that is homogeneous on large scales, local density fluctuations can imprint a systematic signature on the cosmological inferences we make from distant sources. O…
Neutrinos in Non-linear Structure Formation - The Effect on Halo Properties
Jacob Brandbyge, Steen Hannestad, Troels Haugboelle +1
We use N-body simulations to find the effect of neutrino masses on halo properties, and investigate how the density profiles of both the neutrino and the dark matter components cha…