Haser

class sbpy.activity.Haser(Q, v, parent, daughter=None)[source]

Bases: sbpy.activity.gas.core.GasComa

Haser coma model.

Some functions require scipy.

Parameters
QQuantity

Production rate, per time.

vQuantity

Radial outflow speed, distance per time.

parentQuantity

Coma lengthscale of the parent species.

daughterQuantity, optional

Coma lengthscale of the daughter species.

References

Haser 1957, Bulletin de la Societe Royale des Sciences de Liege 43, 740.

Newburn and Johnson 1978, Icarus 35, 360-368.

Methods Summary

total_number(self, aper[, eph])

Total number of molecules in aperture.

Methods Documentation

total_number(self, aper, eph=None)[source]

Total number of molecules in aperture.

Parameters
aperQuantity, Aperture

Observation aperture. May be a circular aperture radius with units of length or angle.

ephdictionary-like, Ephem, Quantity

Target-observer distance, or ephemeris with delta. Required if the aperture has angular units.

Returns
Nfloat

Total number of molecules within the aperture.