Skip to content

SSC for g-g lensing and galaxy clustering using DarkEmulator#1079

Closed
RyoTerasawa wants to merge 23 commits intomasterfrom
dark-emulator
Closed

SSC for g-g lensing and galaxy clustering using DarkEmulator#1079
RyoTerasawa wants to merge 23 commits intomasterfrom
dark-emulator

Conversation

@RyoTerasawa
Copy link
Copy Markdown
Contributor

I implemented the functions to calculate galaxy-matter and galaxy-auto power spectrum responses to the super-survey modes, which are responsible for super sample covariance. The halo statistics (halo-matter/halo-auto power spectrum, mass function) are calculated by DarkEmulator. We approximate the halo-matter/halo-auto power spectrum growth response to super-survey modes by its growth response to the Hubble parameter, which is calculated using DarkEmulator.
Changes are mostly in darkemulator.py, which I created.
In darkemulator.py, the main functions are

  • darkemu_Pgm_Tk3D_SSC: returns a class:~pyccl.tk3d.Tk3D object containing the super-sample covariance trispectrum between galaxy-matter power spectra.

  • darkemu_Pgm_resp: calculates galaxy-matter power spectrum responses to the super-survey modes.

  • darkemu_Pgg_resp_zresp/darkemu_Pgg_resp_Asresp: calculates galaxy-auto power spectrum responses to the super-survey modes.

@RyoTerasawa
Copy link
Copy Markdown
Contributor Author

The changes in this PR is now included in
#1134

@RyoTerasawa RyoTerasawa closed this Dec 4, 2023
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants