Emergent gravity fails to explain color-dependent galaxy-galaxy lensing
  signals from SDSS Dr7
  We test the Emergent Gravity(EG) theory using the galaxy-galaxy lensing
technique based on SDSS DR7 data. In the EG scenario, we do not expect color
dependence of the galaxy sample in the 'apparent dark matter' predicted by EG,
which is exerted only by the baryonic mass. If the baryonic mass is similar,
then the predicted lensing profiles from the baryonic mass should be similar
according to the EG, regardless of the color of the galaxy sample. We use the
stellar mass of the galaxy as a proxy of its baryonic mass. We divide our
galaxy sample into 5 stellar mass bins, and further classify them as red and
blue subsamples in each stellar mass bin. If we set halo mass and concentration
as free parameters, $\Lambda$CDM is favored by our data in terms of the reduced
$\chi^2$ while EG fails to explain the color dependence of ESDs from the
galaxy-galaxy lensing measurement.
