dsigmasq¶

halotools.jeans.dsigmasq(rrp, nsat_spl, massprof_spl, norm)[source] [edit on github]¶

Integrand of the spherical Jeans equation:

$\frac{d\sigma^2(r|M)}{dr} = \frac{4\pi G N_{sat}(r | M) M(<r)}{r^{2}}$

Parameters:

rrp : array_like

An array with radii at which dsigma^s(r|M) needs to be computed

nsat_spl : array_like

Spline with the number density distribution of satellites

massprof_spl : array_like

Spline with the mass profile M(<r)

Returns:

result : array_like

d[Sigma^2(r|M)]