import lenstronomy.Util.param_util as param_util
__all__ = ["PJaffe", "PJaffeEllipse"]
[docs]class PJaffe(object):
"""Class for pseudo Jaffe lens light (2d projected light/mass distribution)"""
param_names = ["amp", "Ra", "Rs", "center_x", "center_y"]
lower_limit_default = {
"amp": 0,
"Ra": 0,
"Rs": 0,
"center_x": -100,
"center_y": -100,
}
upper_limit_default = {
"amp": 100,
"Ra": 100,
"Rs": 100,
"center_x": 100,
"center_y": 100,
}
[docs] def __init__(self):
from lenstronomy.LensModel.Profiles.p_jaffe import PJaffe as PJaffe_lens
self.lens = PJaffe_lens()
[docs] def function(self, x, y, amp, Ra, Rs, center_x=0, center_y=0):
"""
:param x:
:param y:
:param amp:
:param Ra:
:param Rs:
:param center_x:
:param center_y:
:return:
"""
rho0 = self.lens.sigma2rho(amp, Ra, Rs)
return self.lens.density_2d(x, y, rho0, Ra, Rs, center_x, center_y)
[docs] def light_3d(self, r, amp, Ra, Rs):
"""
:param r:
:param amp:
:param Rs:
:param Ra:
:return:
"""
rho0 = self.lens.sigma2rho(amp, Ra, Rs)
return self.lens.density(r, rho0, Ra, Rs)
[docs]class PJaffeEllipse(object):
"""Calss for elliptical pseudo Jaffe lens light."""
param_names = ["amp", "Ra", "Rs", "e1", "e2", "center_x", "center_y"]
lower_limit_default = {
"amp": 0,
"Ra": 0,
"Rs": 0,
"e1": -0.5,
"e2": -0.5,
"center_x": -100,
"center_y": -100,
}
upper_limit_default = {
"amp": 100,
"Ra": 100,
"Rs": 100,
"e1": 0.5,
"e2": 0.5,
"center_x": 100,
"center_y": 100,
}
[docs] def __init__(self):
from lenstronomy.LensModel.Profiles.p_jaffe import PJaffe as PJaffe_lens
self.lens = PJaffe_lens()
self.spherical = PJaffe()
[docs] def function(self, x, y, amp, Ra, Rs, e1, e2, center_x=0, center_y=0):
"""
:param x:
:param y:
:param amp:
:param Ra:
:param Rs:
:param center_x:
:param center_y:
:return:
"""
x_, y_ = param_util.transform_e1e2_square_average(
x, y, e1, e2, center_x, center_y
)
return self.spherical.function(x_, y_, amp, Ra, Rs)
[docs] def light_3d(self, r, amp, Ra, Rs, e1=0, e2=0):
"""
:param r:
:param amp:
:param Ra:
:param Rs:
:return:
"""
return self.spherical.light_3d(r, amp, Ra, Rs)