galpy.df.impulse_deltav_general_fullplummerintegration¶
- galpy.df.impulse_deltav_general_fullplummerintegration(v, x, b, w, x0, v0, galpot, GM, rs, tmaxfac=10.0, N=1000, integrate_method='symplec4_c')[source]¶
NAME:
impulse_deltav_general_fullplummerintegration
PURPOSE:
calculate the delta velocity to due an encounter with a moving Plummer sphere and galactic potential relative to just in galactic potential
INPUT:
v - velocity of the stream (nstar,3)
x - position along the stream (nstar,3)
b - impact parameter
w - velocity of the subhalo (3)
x0 - position of closest approach (3)
v0 - velocity of stream at closest approach (3)
galpot - Galaxy Potential object
GM - mass of Plummer
rs - scale of Plummer
tmaxfac(10) - multiple of rs/fabs(w - v0) to use for time integration interval
N(1000) - number of forward integration points
integrate_method(‘symplec4_c’) - orbit integrator to use (see Orbit.integrate)
OUTPUT:
deltav (nstar,3)
HISTORY:
2015-08-18 - SANDERS