scopesim_templates.extragalactic.exgal_models.GalaxyBase

class scopesim_templates.extragalactic.exgal_models.GalaxyBase(x: ndarray, y: ndarray, x_0: int, y_0: int, amplitude: float, r_eff: float, ellip: float, theta: float, n: int = 4, vmax: float = 0.0, sigma: float = 0.0, q: float = 0.2, e_in: float = 0.04, e_out: float = -0.42)

Bases: object

Class to define a galaxy.

It takes a set of parameters and creates the different moments for

__init__(x: ndarray, y: ndarray, x_0: int, y_0: int, amplitude: float, r_eff: float, ellip: float, theta: float, n: int = 4, vmax: float = 0.0, sigma: float = 0.0, q: float = 0.2, e_in: float = 0.04, e_out: float = -0.42) → None

Methods

__init__(x, y, x_0, y_0, amplitude, r_eff, ...)
get_masks([ngrid])	Return a generator of numpy masks from the regrided regions.
regrid([ngrid])	Regrid the smooth velocity field.

Attributes

dispersion	Velocity dispersion map according to the supplied parameters.
e_in
e_out
intensity	2D light distribution following a Sersic2D profile.
n
q
sigma
velocity	Velocity field according to the supplied parameters.
vmax
x
y
x_0
y_0
amplitude
r_eff
ellip
theta

property dispersion: ndarray

Velocity dispersion map according to the supplied parameters.

Returns:

result – Velocity dispersion map.

Return type:

numpy.ndarray

get_masks(ngrid: int = 10) → Generator[ndarray]

Return a generator of numpy masks from the regrided regions.

Parameters:

ngrid (TYPE, optional) – Griding factor, passed to GalaxyBase.regrid(). The default is 10.

Yields:

mask (numpy.ndarray) – Boolean array constructed from regrided regions.

property intensity: ndarray

2D light distribution following a Sersic2D profile.

Returns:

result – Light distribution map.

Return type:

numpy.ndarray

regrid(ngrid: int = 10) → ndarray

Regrid the smooth velocity field.

Regrid to regions with similar velocity and velocity dispersion.

Parameters:

ngrid (int, optional) – Griding factor. The default is 10.

Returns:

• sectors (numpy.ndarray) – A numpy array with sectors numbered.

• uniques (set) – Set of sector IDs.

property velocity: ndarray

Velocity field according to the supplied parameters.

Returns:

result – Velocity map.

Return type:

numpy.ndarray