progenitor-probability 1.0

Returns the joint progenitor probability (probability that a galaxy is a spheroid at z=0) for a given redshift, mass, environment (percentile) and star-formation rate.

## README for tabulate_progenitor_probability.py

### Reference: [Martin et al. 2018a](https://doi.org/10.1093/mnras/stx3057 “Martin+18a”) Martin, G., Kaviraj, S., Devriendt J. E. G., Dubois Y., Pichon C., Laigle C.

### Contact: [[e-mail]](mailto:[e-mail] “email”)

### Purpose: Reads fractions.dat binary file and returns the joint progenitor probability for given redshift, mass, environment (percentile) and star-formation rate (i.e. the probability that a galaxy with given properties has spheroidal morphology at z=0). If one or more dimensions are not specified, the joint progenitor probability is returned with missing dimensions marginalised out.

### Prerequisites: * fractions.dat * numpy * scipy

### Installation:

pip install git+https://github.com/garrethmartin/progenitor-fractions.git

### Usage:

#### Using the built-in script:

tabulate_progenitor_probability.py -z 0.4 -m 10.8 0.266751184855

tabulate_progenitor_probability.py –help

usage: tabulate_progenitor_probability.py [-h] [-z REDSHIFT] [-m MASS]

[-p DENSITY] [-s SFR]

optional arguments:

-h, --help

show this help message and exit

-z REDSHIFT, --redshift REDSHIFT

Redshift

-m MASS, --mass MASS

Log10 stellar mass/M_sun

-p DENSITY, --density DENSITY

Local number density percentile [0,100]

-s SFR, --SFR SFR

SFR in M_sun/yr

-z redshift

-m log10(stellar mass / M_sun)

-p percentile of local number density in the range [0,100] (see [Martin et al. 2018a](https://doi.org/10.1093/mnras/stx3057 “Martin+18a”))

-s star formation rate in M_sun/yr

#### Importing the package ` from progenitor_probability import progenitor_probability >>> progenitor_probability(redshift=0.4, mass=10.8) 0.266751184855 `