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pNbody |  |
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The new version of pNbody also uses a default parameters used for units conversion. The list and the meaning of these parameters is given in the following table :
| parameter | Type | Meaning |
|---|---|---|
| xi | Float | Hydrogen mass fraction |
| ionisation | Int | Ionisation flag (ionized gas = 1, neutral gaz = 0) |
| metalicity | Int | Metalicity index (between 0 and 5), used for cooling function |
| coolingfile | String | Path to the file containing the tabulated cooling function |
| Nsph | Int | Number of sph neighbors (unused) |
| Cosmo | String | use cosmological units ('yes' or 'no') |
| OmegaLambda | Float | Omega Lambda |
| Omega0 | Float | Omega matter |
| UnitLength_in_cm | Float | Model units lenght in cm |
| UnitMass_in_g | Float | Model units mass in g |
| UnitVelocity_in_cm_per_s | Float | Model units velocity in cm/s |
All these parameters may be displayed or set using the methods :
>>> nb.unitsparameters.get('HubbleParam')
>>> nb.unitsparameters.set('HubbleParam',0.73)
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