Dr
Joachim Stadel
(University of Zurich)
18/10/2016, 11:00
I will discuss the method employed in our recent 2 trillion particle simulation for
generating a light cone where the look-back time and comoving distance from the
observer is an exact linear function for every particle. While such an approach may seem
to be extremely costly at face value, it turns out to be quite efficient for reasonably large
cosmological volumes. I will also discuss...
Mr
Sownak Bose
(Institute for Computational Cosmology)
18/10/2016, 11:30
We present a ray tracing code to compute integrated cosmological observables on the fly in AMR N-body
simulations. Unlike conventional ray tracing techniques, this code takes full advantage of the time and spatial
resolution attained by the N-body simulation by computing the integrals along the line of sight on a cell-by-cell
basis through the AMR simulation grid. Moreover, since it runs on...
Dr
Claudio Llinares
(Durham University)
18/10/2016, 12:00
While doing predictions for gravitational lensing using first order equations greatly simplifies the calculations, it has been shown that the approximations involved can not reach the accuracy required by the next generation of galaxy surveys. Second order effects must be included in lensing predictions. Since this is new territory, it is important that we do not focus only on one technique,...
Mr
Alexander Smith
(Durham University)
18/10/2016, 14:00
With upcoming galaxy surveys, such as DESI and Euclid, it is important to have realistic mock catalogues which can be used, for example, to test methods of measuring statistics from the survey and removing systematic effects. For this purpose, we have created a full sky mock catalogue that is complete to r=20 from the Millennium-XXL (MXXL) simulation. We have generated a MXXL halo lightcone...
Dr
Francisco Javier Castander
(ICE, IEEC-CSIC)
18/10/2016, 14:30
We will summarize the MICE simulations and
the way we have built a lightcone in the dark matter distribution
and for the lensing observables
Dr
Katarina Markovic
(ICG Portsmouth)
18/10/2016, 15:00
Dr
Carmelita Carbone
(INAF - Milan)
19/10/2016, 09:00
I discuss Born and post-Born full-sky lensing ray-tracing in N-Body simulations.
Dr
Carlo Giocoli
(Department of Physics and Astronomy - Alma Mater Studiorum UniBO)
19/10/2016, 11:00
Emiliano Munari
(INAF Osservatorio Astronomico Trieste)
19/10/2016, 11:45
Pinocchio is a tool to generate in an approximate but fast way catalogs of DM halos. The new version comes with on-the-fly production of halo catalog on the past light cone with continuous time sampling.
Dr
Santiago Avila
(Institute of Cosmology and Gravitation)
19/10/2016, 14:00
Mr
Rodríguez-Torres Sergio
(Instituto de Física Teórica/Departamento de Física Teórica UAM/CSIC)
19/10/2016, 14:30
Dr
Katarina Markovic
(ICG Portsmouth)
19/10/2016, 15:00
