csiborgtools/scripts_plots/borg_acl.ipynb
Richard Stiskalek 9e4b34f579
Overlap fixing and more (#107)
* Update README

* Update density field reader

* Update name of SDSSxALFAFA

* Fix quick bug

* Add little fixes

* Update README

* Put back fit_init

* Add paths to initial snapshots

* Add export

* Remove some choices

* Edit README

* Add Jens' comments

* Organize imports

* Rename snapshot

* Add additional print statement

* Add paths to initial snapshots

* Add masses to the initial files

* Add normalization

* Edit README

* Update README

* Fix bug in CSiBORG1 so that does not read fof_00001

* Edit README

* Edit README

* Overwrite comments

* Add paths to init lag

* Fix Quijote path

* Add lagpatch

* Edit submits

* Update README

* Fix numpy int problem

* Update README

* Add a flag to keep the snapshots open when fitting

* Add a flag to keep snapshots open

* Comment out some path issue

* Keep snapshots open

* Access directly snasphot

* Add lagpatch for CSiBORG2

* Add treatment of x-z coordinates flipping

* Add radial velocity field loader

* Update README

* Add lagpatch to Quijote

* Fix typo

* Add setter

* Fix typo

* Update README

* Add output halo cat as ASCII

* Add import

* Add halo plot

* Update README

* Add evaluating field at radial distanfe

* Add field shell evaluation

* Add enclosed mass computation

* Add BORG2 import

* Add BORG boxsize

* Add BORG paths

* Edit run

* Add BORG2 overdensity field

* Add bulk flow clauclation

* Update README

* Add new plots

* Add nbs

* Edit paper

* Update plotting

* Fix overlap paths to contain simname

* Add normalization of positions

* Add default paths to CSiBORG1

* Add overlap path simname

* Fix little things

* Add CSiBORG2 catalogue

* Update README

* Add import

* Add TNG density field constructor

* Add TNG density

* Add draft of calculating BORG ACL

* Fix bug

* Add ACL of enclosed density

* Add nmean acl

* Add galaxy bias calculation

* Add BORG acl notebook

* Add enclosed mass calculation

* Add TNG300-1 dir

* Add TNG300 and BORG1 dir

* Update nb
2024-01-30 16:14:07 +00:00

50 KiB

$P(k, H_0)$

Quick notebook to see how the power spectrum depends on $H_0$.

In [1]:
import numpy as np
import matplotlib.pyplot as plt
import camb
from camb import model

%matplotlib inline
In [19]:
def get_pk(h):
    pars = camb.CAMBparams()

    pars.set_cosmology(H0=h*100, ombh2=0.04825 * h**2, omch2=(0.307 - 0.04825) * h**2)
    pars.InitPower.set_params(ns=0.9611)
    pars.set_matter_power(redshifts=[0.], kmax=40)

    #Non-Linear spectra (Halofit)
    pars.NonLinear = model.NonLinear_both
    results = camb.get_results(pars)
    results.calc_power_spectra(pars)
    kh_nonlin, z_nonlin, pk_nonlin = results.get_matter_power_spectrum(minkh=1e-3, maxkh=50, npoints = 200)

    return kh_nonlin, pk_nonlin[0]

kh_nonlin, pk_nonlin_reference = get_pk(0.705)
In [25]:
plt.figure()

for h in [0.65, 0.70, 0.75]:
    __, pk = get_pk(h)
    plt.plot(kh_nonlnie, pk / pk_nonlin_reference, label=r"$h = {}$".format(h))

plt.legend()
plt.xscale("log")
plt.xlabel(r"$k ~ [h / \mathrm{Mpc}]$")
plt.ylabel(r"$P(k, h) / P(k, h=0.705)$")

plt.tight_layout()
plt.savefig("../plots/pk_h0_dependence.png", dpi=450)
plt.show()
No description has been provided for this image
In [ ]: