NFWProfile¶

class gammapy.astro.darkmatter.profiles.NFWProfile(r_s=None, rho_s=<Quantity 1. GeV / cm3>)[source]¶

NFW Profile.

\[\rho(r) = \rho_s \frac{r_s}{r}\left(1 + \frac{r}{r_s}\right)^{-2}\]

Parameters:

r_s : Quantity

Scale radius, \(r_s\)

rho_s : Quantity

Characteristic density, \(\rho_s\)

References

Attributes Summary

`DEFAULT_SCALE_RADIUS`	Default scale radius as given in reference 2
`DISTANCE_GC`
`LOCAL_DENSITY`

Methods Summary

`__call__`(radius)	Call evaluate method of derived classes.
`evaluate`(radius, r_s, rho_s)
`integral`(rmin, rmax, **kwargs)	Integrate squared dark matter profile numerically.
`scale_to_local_density`()	Scale to local density.

Attributes Documentation

DEFAULT_SCALE_RADIUS = <Quantity 24.42 kpc>¶: Default scale radius as given in reference 2

Methods Documentation

integral(rmin, rmax, **kwargs)¶

Integrate squared dark matter profile numerically.

\[F(r_{min}, r_{max}) = \int_{r_{min}}^{r_{max}}\rho(r)^2 dr\]

Parameters:

rmin, rmax : Quantity

Lower and upper bound of integration range.

**kwargs : dict

Keyword arguments passed to integrate_spectrum()