Measuring subhalo mass in redMaPPer clusters with CFHT Stripe 82 Survey
  We use the shear catalog from the CFHT Stripe-82 Survey to measure the
subhalo masses of satellite galaxies in redMaPPer clusters. Assuming a Chabrier
Initial Mass Function (IMF) and a truncated NFW model for the subhalo mass
distribution, we find that the sub-halo mass to galaxy stellar mass ratio
increases as a function of projected halo-centric radius $r_p$, from $M_{\rm
sub}/M_{\rm star}=4.43^{+ 6.63}_{- 2.23}$ at $r_p \in [0.1,0.3]$ $h^{-1}Mpc$ to
$M_{\rm sub}/M_{\rm star}=75.40^{+ 19.73}_{- 19.09}$ at $r_p \in [0.6,0.9]$
$h^{-1}Mpc$. We also investigate the dependence of subhalo masses on stellar
mass by splitting satellite galaxies into two stellar mass bins:
$10<\log(M_{\rm star}/M_{\rm sun})<10.5$ and $11<\log(M_{\rm star}/M_{\rm
sun})<12$. The best-fit subhalo mass of the more massive satellite galaxy bin
is larger than that of the less massive satellites: $\log(M_{\rm sub}/M_{\rm
sun})=11.14 ^{+ 0.66 }_{- 0.73}$ ($M_{\rm sub}/M_{\rm
star}=19.5^{+19.8}_{-17.9}$) versus $\log(M_{\rm sub}/M_{\rm sun})=12.38 ^{+
0.16 }_{- 0.16}$ ($M_{\rm sub}/M_{\rm star}=21.1^{+7.4}_{-7.7}$).
