Polarization
Polarization
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Bases: Module
Object defining a given polarization mode, with utilities to produce corresponding tensor in an Earth centric frame.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
name
|
str
|
One of 'p' (plus), 'c' (cross), 'x' (vector x), 'y' (vector y), 'b' (breathing), or 'l' (longitudinal). |
required |
Methods:
| Name | Description |
|---|---|
tensor_from_basis |
Constructor to obtain polarization tensor from waveframe basis |
tensor_from_sky |
Computes {name} polarization tensor in celestial |
tensor_from_basis(x: Float[Array, 3], y: Float[Array, 3]) -> Float[Array, '3 3']
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Constructor to obtain polarization tensor from waveframe basis defined by orthonormal vectors (x, y) in arbitrary Cartesian coordinates.
tensor_from_sky(ra: FloatScalar, dec: FloatScalar, psi: FloatScalar, gmst: FloatScalar) -> Float[Array, '3 3']
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Computes {name} polarization tensor in celestial coordinates from sky location and orientation parameters.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
ra
|
Float
|
Right ascension in radians. |
required |
dec
|
Float
|
Declination in radians. |
required |
psi
|
Float
|
Polarization angle in radians. |
required |
gmst
|
Float
|
Greenwich mean standard time (GMST) in radians. |
required |
Returns:
| Type | Description |
|---|---|
Float[Array, '3 3']
|
Float[Array, "3 3"]: 3x3 polarization tensor. |