Closed maho3 closed 4 months ago
Looks like this is true, so I will add this correction
PR #9 solves this for Quijote. Still need to correct this for methods which call rho_to_halo
.
This has been corrected in cmass.nbody
models in the last couple commits.
In current comparisons with Quijote, it seems that the particle velocities output from pmwd and BORG are comoving velocities, not peculiar velocities as originally thought. The evidence for this has come from comparing halo catalogs with Quijote.
This task is to double-check this comparison and make sure we are using the right thing. For reference, the conversion goes as:
$$v{\rm pec} = (1+z) v{\rm com}$$
For the z=0 snapshots, this is the same, but for CMASS at z=0.5 if will be biased.