HSM

[b-remy]

We want to identify the number of galaxies from which HSM shows a bias. I will report here result of code developed in #19

Here is what we got using 5400 galaxies, for an expected shear of (-0.03, 0.03):

So let's see for 10^4, 10^5 galaxies

[b-remy]

Here is the bias identified for the following cut:

galp.original.n > .4
galp.original.half_light_radius < 3.
cat.param_cat['mag_auto'][cat.orig_index[ind] > 22.5

m = g_est/g_true - 1
merr = sigma_g_est/g_true

• 2 sigma bias (about 26000 galaxies)

  m1 = -0.124 +/- 0.121 # 2 sigma
  m2 = +0.124 +/- 0.120 # 2 sigma

• 3 sigma should be identified at more that 42000 galaxies

d0180d7