ACP Seminar (Astronomy - Cosmology - Particle Physics)

Speaker: Jun Koda (Swinburne University of Technology)
Title: A large number of fast cosmological simulations for the revised WiggleZ BAO measurement
Date (JST): Fri, Mar 14, 2014, 13:30 - 15:00
Place: Seminar Room A
Related File: 1148.pdf
Abstract: A large number of cosmological simulations is very important for the evaluation of the uncertainties in large-scale structure measurements. We generate 600 realisations of mock galaxy catalogues for the WiggleZ Dark Energy Survey using the COmoving Lagrangian Acceleration (COLA) method. This simulation method can compute large-scale structure reasonably well with only 10 time steps and also resolve dark matter haloes that hosts galaxies in the WiggleZ survey. I discuss the benefit of these quick simulations, and present our revised Baron Acoustic Oscillation (BAO) cosmic distance measurement from the WiggleZ survey, improved by the 'reconstruction' technique.