thermal_pressure

plasmapy.formulary.parameters.thermal_pressure(T: Unit(‘K’), n: Unit(‘1 / m3’))

Return the thermal pressure for a Maxwellian distribution.

Aliases: pth_

Parameters
  • T (Quantity) – The particle temperature in either kelvin or energy per particle.

  • n (Quantity) – The particle number density in units convertible to m-3.

Examples

>>> import astropy.units as u
>>> thermal_pressure(1*u.eV, 1e20/u.m**3)
<Quantity 16.021... Pa>
>>> thermal_pressure(10*u.eV, 1e20/u.m**3)
<Quantity 160.21... Pa>
Returns

p_th – Thermal pressure.

Return type

Quantity

Raises

Notes

The thermal pressure is given by:

\[T_{th} = n k_B T\]