Source code for autogalaxy.profiles.light.linear.sersic_core

from typing import Tuple

from autogalaxy.profiles.light.linear.abstract import LightProfileLinear

from autogalaxy.profiles.light import standard as lp




class SersicCore(lp.SersicCore, LightProfileLinear):
    def __init__(
        self,
        centre: Tuple[float, float] = (0.0, 0.0),
        ell_comps: Tuple[float, float] = (0.0, 0.0),
        effective_radius: float = 0.6,
        sersic_index: float = 4.0,
        radius_break: float = 0.01,
        gamma: float = 0.25,
        alpha: float = 3.0,
    ):
        """
        The elliptical cored-Sersic light profile.

        Parameters
        ----------
        centre
            The (y,x) arc-second coordinates of the profile centre.
        ell_comps
            The first and second ellipticity components of the elliptical coordinate system.
        effective_radius
            The circular radius containing half the light of this profile.
        sersic_index
            Controls the concentration of the profile (lower -> less concentrated, higher -> more concentrated).
        radius_break
            The break radius separating the inner power-law (with logarithmic slope gamma) and outer Sersic function.
        gamma
            The logarithmic power-law slope of the inner core profiles
        alpha
            Controls the sharpness of the transition between the inner core / outer Sersic profiles.
        """

        super().__init__(
            centre=centre,
            ell_comps=ell_comps,
            intensity=1.0,
            effective_radius=effective_radius,
            sersic_index=sersic_index,
            radius_break=radius_break,
            alpha=alpha,
            gamma=gamma,
        )





class SersicCoreSph(SersicCore):
    def __init__(
        self,
        centre: Tuple[float, float] = (0.0, 0.0),
        effective_radius: float = 0.6,
        sersic_index: float = 4.0,
        radius_break: float = 0.01,
        gamma: float = 0.25,
        alpha: float = 3.0,
    ):
        """
        The spherical cored-Sersic light profile.

        Parameters
        ----------
        centre
            The (y,x) arc-second coordinates of the profile centre.
        effective_radius
            The circular radius containing half the light of this profile.
        sersic_index
            Controls the concentration of the profile (lower -> less concentrated, higher -> more concentrated).
        radius_break
            The break radius separating the inner power-law (with logarithmic slope gamma) and outer Sersic function.
        gamma
            The logarithmic power-law slope of the inner core profiles
        alpha
            Controls the sharpness of the transition between the inner core / outer Sersic profiles.
        """

        super().__init__(
            centre=centre,
            ell_comps=(0.0, 0.0),
            effective_radius=effective_radius,
            sersic_index=sersic_index,
            radius_break=radius_break,
            alpha=alpha,
            gamma=gamma,
        )