fardal_stream

gala.dynamics.mockstream.fardal_stream(potential, prog_orbit, prog_mass, release_every=1, Integrator=<class 'gala.integrate.pyintegrators.dopri853.DOPRI853Integrator'>, Integrator_kwargs={})

Generate a mock stellar stream in the specified potential with a progenitor system that ends up at the specified position.

This uses the prescription from Fardal et al. (2015).

Parameters:

potential : PotentialBase

The gravitational potential.

prog_orbit : Orbit

The orbit of the progenitor system.

prog_mass : numeric, array_like

A single mass or an array of masses if the progenitor mass evolves with time.

release_every : int (optional)

Release particles at the Lagrange points every X timesteps.

Integrator : Integrator (optional)

Integrator to use.

Integrator_kwargs : dict (optional)

Any extra keyword argumets to pass to the integrator function.

Returns:

stream : CartesianPhaseSpacePosition