coolest.api.profiles.mass

coolest.api.profiles.mass#

Classes#

`BaseMassProfile`	Base class to define a mass profile to compute lensing quantities.
`PEMD`	Power-law Elliptical Mass Distribution (a.k.a. Elliptical Power-law)
`ExternalShear`	Coordinates of the origin for the external shear profile are assumed to be (0., 0.).
`ConvergenceSheet`	Coordinates of the origin for the convergence sheet are assumed to be (0., 0.).

Module Contents#

class BaseMassProfile[source]#

Base class to define a mass profile to compute lensing quantities. Each specific class must be consistent with the equivalent class from the coolest.template submodule.

NOTE: in the future, a new coolest.profiles submodule will merge profile definitions that are currently split between coolest.template and coolest.api.

abstract potential(**params)[source]#

abstract deflection(**params)[source]#

abstract convergence(**params)[source]#

abstract hessian(**params)[source]#

property template_class[source]#

property type[source]#

property parameter_names[source]#

class PEMD[source]#

Power-law Elliptical Mass Distribution (a.k.a. Elliptical Power-law) This follows implementations in lenstronomy (:, Birrer et al. [BirrerShajibGilman+21]:) based on the formulae [TessoreMetcalf15]:.

param_conv(theta_E, q, gamma)[source]#

potential(x, y, theta_E=1.0, gamma=2.0, phi=0.0, q=1.0, center_x=0.0, center_y=0.0)[source]#

deflection(x, y, theta_E=1.0, gamma=2.0, phi=0.0, q=1.0, center_x=0.0, center_y=0.0)[source]#

convergence(x, y, theta_E=1.0, gamma=2.0, phi=0.0, q=1.0, center_x=0.0, center_y=0.0)[source]#: Returns the convergence (kappa) at the given position (x, y)

hessian(x, y, theta_E=1.0, gamma=2.0, phi=0.0, q=1.0, center_x=0.0, center_y=0.0)[source]#

class ExternalShear[source]#

Coordinates of the origin for the external shear profile are assumed to be (0., 0.).

potential(x, y, gamma_ext=0.0, phi_ext=0.0)[source]#

deflection(x, y, gamma_ext=0.0, phi_ext=0.0)[source]#

convergence(x, y, gamma_ext=0.0, phi_ext=0.0)[source]#

hessian(x, y, gamma_ext=0.0, phi_ext=0.0)[source]#

class ConvergenceSheet[source]#

Coordinates of the origin for the convergence sheet are assumed to be (0., 0.).

potential(x, y, kappa_s=0.0)[source]#

deflection(x, y, kappa_s=0.0)[source]#

convergence(x, y, kappa_s=0.0)[source]#

hessian(x, y, kappa_s=0.0)[source]#