Title: The relation between galaxy morphology and colour in the EAGLE simulation,
Abstract: We investigate the relation between kinematic morphology, intrinsic colour
and stellar mass of galaxies in the EAGLE cosmological hydrodynamical
simulation. We calculate the intrinsic u-r colours and measure the fraction of
kinetic energy invested in ordered corotation of 3562 galaxies at z=0 with
stellar masses larger than $10^{10}M_{\odot}$. We perform a visual inspection
of gri-composite images and find that our kinematic morphology correlates
strongly with visual morphology. EAGLE produces a galaxy population for which
morphology is tightly correlated with the location in the colour- mass diagram,
with the red sequence mostly populated by elliptical galaxies and the blue
cloud by disc galaxies. Satellite galaxies are more likely to be on the red
sequence than centrals, and for satellites the red sequence is morphologically
more diverse. These results show that the connection between mass, intrinsic
colour and morphology arises from galaxy formation models that reproduce the
observed galaxy mass function and sizes.