FLARES
with background image
First Light And Reionisation Epoch Simulations (FLARES)
Cosmological hydrodynamic simulations have, in recent years, become capable of matching key distribution functions in the local universe, such as those of stellar mass and star formation rate. However, high resolution, large volume simulations have rarely been tested in the high redshift ($z > 5$) regime, particularly in the most overdense environments. Creating models that fit both high redshift and low redshift observables self consistently is a significant challenge, but key to understanding the properties of galaxies in the first billion years of the universe’s history, and how this affects their latter evolution. Such models are also necessary to make detailed predictions, and plan observations, for upcoming space based instruments, such as JWST, WFIRST and Euclid.
The column density of gas, stars and dark matter in the most overdense region in the FLARES sample.
The First Light And Reionisation Epoch Simulations (FLARES) are one approach to these issues. FLARES consists of a suite of 40 ‘zoom’ simulations using a modified version of the EAGLE code. We selected regions at high redshift, with a range of overdensities, from an enormous periodic dark matter-only volume, and resimulated these with full hydrodynamics at fiducial EAGLE resolution. I led the first release paper (Lovell et al 2021; arXiv:2004.07283) in which we study predictions for the galaxy stellar mass function, star formation rate function and star-forming sequence. Below is an introductory talk that I gave at the 2020 SAZERAC meeting (with awkward slide transition requests due to a technical error…!).
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---
layout: page
title: project
description: a project with a background image
img: /assets/img/12.jpg
---
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