We detect weak gravitational lensing of the cosmic microwave background ( CMB ) at the location of the WISE \times SuperCOSMOS ( WISE \times SCOS ) galaxies using the publicly available Planck lensing convergence map .
By stacking the lensing convergence map at the position of 12.4 million galaxies in the redshift range 0.1 \leq z \leq 0.345 , we find the average mass of the galaxies to be M _ { 200 _ { crit } } = 6.25 \pm 0.6 \times \mbox { 10 } ^ { 12 } \mbox { M } _ { \odot } .
The null hypothesis of no-lensing is rejected at a significance of 17 \sigma .
We split the galaxy sample into three redshift slices each containing \sim 4.1 million objects and obtain lensing masses in each slice of 4.18 \pm 0.8 , 6.93 \pm 0.9 , and 18.84 \pm 1.2 \times 10 ^ { 12 } \mbox { M } _ { \odot } .
Our results suggest a redshift evolution of the galaxy sample masses but this apparent increase might be due to the preferential selection of intrinsically luminous sources at high redshifts .
The recovered mass of the stacked sample is reduced by 28 % when we remove the galaxies in the vicinity of galaxy clusters with mass M _ { 200 _ { crit } } = 2 \times 10 ^ { 14 } \mbox { M } _ { \odot } .
We forecast that upcoming CMB surveys can achieve 5 % galaxy mass constraints over sets of 12.4 million galaxies with M _ { 200 _ { crit } } = 1 \times 10 ^ { 12 } \mbox { M } _ { \odot } at z = 1 .