Friday 17 September 2010

How does galaxy environment matter?


For some obscure reason blogger does not let me put on my text here fully, so see the first comment for that....

1 comment:

Marcel said...

In 1009.3189 ('How does galaxy environment matter? The relationship between galaxy environments, colour and stellar mass at 0.4<z<1 in the Palomar/DEEP2 survey' by Grutzbach et al) the authors investigate the dependence of galaxy colours (mainly) as a function of stellar mass and several 'independent' measures of environment (halo mass, nearest neighbour densities and several dynamical quantities in a fixed 1Mpc aperture). They find that stellar mass is the main driver of galaxy colours. There is a correlation between environment and stellar mass that also explains the weak correlations between environment and colour. The plot(s) that I picked show(s) the strong dependence of colours on stellar mass and the weak dependence on halo mass in all three redshift bins probed.