Data Guide | TAO Units

Below we list the unit and Hubble constant conventions assumed in TAO. The use of little h in particular can differ significantly between the theory and observational communities (and even within a community) and care must always be taken (Croton 2013).

Unless otherwise stated:

Masses adopt 10^10 h^-1 Msun
Positions adopt h^-1 Mpc and are in co-moving coordinates
Sizes adopt h^-1 Mpc and are in physical coordinates
Velocities adopt km s^-1 and are in physical coordinates
Star formation rates adopt Msun yr^−1
Heating and cooling rates are in units of log10 erg s^-1
Photometric magnitudes are calculated assuming the h value of the dark matter simulation used to produce the mock catalogue