Isothermal disk potential¶
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class
galpy.potential.
IsothermalDiskPotential
(amp=1.0, sigma=0.1, ro=None, vo=None)¶ Class representing the one-dimensional self-gravitating isothermal disk
\[\rho(x) = \mathrm{amp}\,\mathrm{sech}^2\left(\frac{x}{2H}\right)\]where the scale height \(H^2 = \sigma^2/[8\pi G \,\mathrm{amp}]\). The parameter to setup the disk is the velocity dispersion \(\sigma\).
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__init__
(amp=1.0, sigma=0.1, ro=None, vo=None)¶ NAME:
__init__PURPOSE:
Initialize an IsothermalDiskPotentialINPUT:
amp - an overall amplitude
sigma - velocity dispersion (can be a Quantity)
OUTPUT:
instanceHISTORY:
2018-04-11 - Written - Bovy (UofT)
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