Growth module

Provides linear growth factor $D(a)$.

Uses omega_m in the cosmology module; set it in advance, e.g, mock.cosmology_set(0.31).

Function	Result
growth_D(a)	linear growth factor $D(a)$ at scale factor $a$



In [2]:

    
%matplotlib inline
import numpy as np
import matplotlib.pyplot as plt
import mockgallib as mock
mock.cosmology.set(0.31)
mock.growth_D(1.0)









    Out[2]:





1.0



In [3]:

    
a = np.arange(0.0, 1.0, 0.01)
growth = [mock.growth_D(aa) for aa in a]

plt.plot(a, growth, 'r-')
plt.xlabel('scale factor $a$')
plt.ylabel('$D$')
plt.show();



In [4]:

    
%%html
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