vesc_sun_at_R¶
- macro_lightning.parameters.vesc_sun_at_R(R)[source]¶
Escape velocity from the sun, starting at position R.
The Newtonian escape velocity from a spherical mass distribution, starting at a position r_0, is \(v_0=\sqrt{2gr_0}\). If this value is known at some position r0, than it is known at all R by virtue of ratios. We calculate this value for the sun relative to the known value at the earth – 42.1 km / s.
- Parameters
- R
Distanceor |Quantity| From the sun.
- R
- Returns
- vesc|Quantity|
Same shape as
R- .. |Quantity| replace::class:
Quantity