Paczynski1990

class gammapy.astro.population.Paczynski1990(amplitude=1, r_exp=4.5, **kwargs)

Bases: astropy.modeling.Fittable1DModel

Radial distribution of the birth surface density of neutron stars - Paczynski 1990.

\[f(r) = A r_{exp}^{-2} \exp \left(-\frac{r}{r_{exp}} \right)\]

Reference: http://adsabs.harvard.edu/abs/1990ApJ...348..485P (Formula (2))

Parameters:

amplitude : float

See formula

r_exp : float

See formula

See also

CaseBattacharya1998, YusifovKucuk2004, Lorimer2006, YusifovKucuk2004B, FaucherKaspi2006, Exponential

Attributes Summary

amplitude
evolved
param_names
r_exp

Methods Summary

evaluate(r, amplitude, r_exp)

One dimensional Paczynski 1990 model function

Attributes Documentation

amplitude

evolved = False

param_names = ('amplitude', 'r_exp')

r_exp

Methods Documentation

static evaluate(r, amplitude, r_exp)

One dimensional Paczynski 1990 model function