# Halo Mass Accretion Histories: WMAP1 Cosmology

The files in the table below contain mass accretion histories of halos of masses M_{0} as indicated by the first column. The following columns in the table indicate the starting redshift z_{0}. You will find that it is not same the mass history of a halo that has a mass of 10^{12}M_{⨀} at redshift z_{0}=0 from a halo that has the same mass at redshift z_{0}=2. Here’s an example using commah.py:

In [1]: import numpy as np

In [2]: import commah

In [3]: output = commah.run(‘WMAP1’,**zi=0.**,Mi=1e12,z=[2.0,3.0,4.0,5.0,6.0])

In [4]: np.log10(output[‘Mz’])

Out[4]: array([[11.44275008,11.13066616,10.81032845,10.48477003,10.15560886]])

In [5]: output = commah.run(‘WMAP1’,**zi=2.**,Mi=1e12,z=[2.0,3.0,4.0,5.0,6.0])

In [6]: np.log10(output[‘Mz’])

Out[6]: array([[ 12.0,11.65713925,11.31178218,10.96540308,10.61846395]])

The following files contain columns with redshift, halo mass, accretion rate, concentration, virial radius and scale radius. Download here.

_{0} |
z_{0}=0.0 |
z_{0}=0.5 |
z_{0}=1.0 |
z_{0}=2.0 |
z_{0}=3.0 |
z_{0}=4.0 |
z_{0}=5.0 |
z_{0}=6.0 |
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1.0×10^{6} M_{⨀} |
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5.0×10^{6} M_{⨀} |
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1.0×10^{7} M_{⨀} |
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5.0×10^{7} M_{⨀} |
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1.0×10^{8} M_{⨀} |
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5.0×10^{8} M_{⨀} |
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1.0×10^{9} M_{⨀} |
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5.0×10^{9} M_{⨀} |
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1.0×10^{10} M_{⨀} |
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5.0×10^{10} M_{⨀} |
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1.0×10^{11} M_{⨀} |
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5.0×10^{11} M_{⨀} |
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1.0×10^{12} M_{⨀} |
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5.0×10^{12} M_{⨀} |
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1.0×10^{13} M_{⨀} |
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5.0×10^{13} M_{⨀} |
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1.0×10^{14} M_{⨀} |
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5.0×10^{14} M_{⨀} |