The BAHAMAS (BAryons and HAloes of MAssive Systems) project is a large-volume, cosmological simulations which grew out of the (Cosmo-)OWLS project. It is a first attempt to calibrate the feedback on the total baryon content of haloes and is the first study to explicitly calibrate the feedback on the observed properties of massive haloes.
The BAHAMAS project extends the calibration philosophy used by EAGLE to also include the gas fractions of groups and clusters (since the hot gas dominates over the stellar mass fraction in such systems) which is crucially important when trying to constrain feedback models.
The initial paper for “The BAHAMAS Project” has been published as McCarthy et al. 2017. For more information and relevant publications please visit LJMU’s project description page or contact Ian McCarthy.