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JulloLikelihood module
Likelihood of Jullo et al (2012) measurements of a galaxy bias sample
Name: JulloLikelihood
File: cosmosis-standard-library/likelihood/jullo_bias/jullo.py
Version: 2012
Author(s):
- Lucy Clerkin
- CosmoSIS Team
URL: http://www.sdss3.org
Cite:
Rules:
Assumptions:
- COSMOS survey galaxy samples
Explanation
Galaxy bias refers to the relative density of galaxies compared to underlying dark matter,
and can be a function of scale and/or redshift.
Jullo et al made measurements of galaxy bias for high and low mass samples.
This module compares a predicted b(z) or b(k,z) from theory to these measurements.
##Parameters
These parameters can be set in the module's section in the ini parameter file.
If no default is specified then the parameter is required.
| Parameter | Description |
|---|---|
| mass | string, low or high. Choose which Jullo sample to work with |
##Inputs
These parameters and data are inputs to the module, either supplied as parameters by the sampler or computed by some previous module. They are loaded from the data block.
| Section | Parameter | Description |
|---|---|---|
| bias_field | z | 1D real array, redshift of theory samples |
| k_h | 1D real array, optional, wavenumber of samples in k_h. if not present then b(z) only is assumed | |
| b | 1D or 2D real array, bias as a function of either k and z or just z |
##Outputs
These parameters and data are computed as outputs from the module
| Section | Parameter | Description |
|---|---|---|
| likelihoods | JULLO_LIKE | real, likelihood of supplied bias model |
Updated