119 citations · 292 across the 9 of their papers we have counts for
9 papers · 1 filter
The radial BAO scale and Cosmic Shear, a new observable for Inhomogeneous Cosmologies
Juan Garcia-Bellido, Troels Haugboelle
As an alternative explanation of the dimming of distant supernovae it has recently been advocated that we live in a special place in the Universe near the centre of a large spheric…
Looking the void in the eyes - the kSZ effect in LTB models
Juan Garcia-Bellido, Troels Haugboelle
As an alternative explanation of the dimming of distant supernovae it has recently been advocated that we live in a special place in the Universe near the centre of a large void de…
Sunyaev-Zeldovich profiles for clusters and groups of galaxies
Troels Haugboelle, Jesper Sommer-Larsen, Kristian Pedersen
The Sunyaev-Zeldovich (SZ) effect gives a measure of the thermal energy and electron pressure in groups and clusters of galaxies. In the near future SZ surveys will map hundreds of…
Angular Signatures of Annihilating Dark Matter in the Cosmic Gamma-Ray Background
Alessandro Cuoco, Jacob Brandbyge, Steen Hannestad +2
The extragalactic cosmic gamma-ray background (CGB) is an interesting channel to look for signatures of dark matter annihilation. In particular, besides the imprint in the energy s…
Modelling Relativistic Astrophysics at the Large and Small Scale
Troels Haugboelle
In this thesis different numerical methods, as well as applications of the methods to a number of current problems in relativistic astrophysics, are presented. In the first part th…
Collisionless Plasma Shocks. Field Generation and Particle Acceleration
T. Haugboelle, C. B. Hededal, J. T. Frederiksen +1
Gamma ray bursts are among the most energetic events in the known universe. A highly relativistic fireball is ejected. In most cases the burst itself is followed by an afterglow, e…
Magnetic Field Generation and electron acceleration in Collisionless Shocks
C. B. Hededal, J. Trier Frederiksen, T. Haugboelle +1
Using a three dimensional relativistic particle-in-cell code we have performed numerical experiments of plasma shells colliding at relativistic velocities. Such scenarios are found…
Observational constraints on particle production during inflation
Oystein Elgaroy, Steen Hannestad, Troels Haugboelle
Resonant particle production, along with many other physical processes which change the effective equation of state (EOS) during inflation, introduces a step-like feature in the pr…
Collisionless Shocks -- Magnetic Field Generation and Particle Acceleration
J. Trier Frederiksen, C. B. Hededal, T. Haugboelle +1
We present numerical results from plasma particle simulations of collisionless shocks and ultra-relativistic counter-streaming plasmas. We demonstrate how the field-particle intera…