SpECTRE  v2026.04.01
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Cce::Tags::NewmanPenroseTauCompute Struct Reference

Compute tag for \(\tau\) in the volume. More...

#include <NewmanPenrose.hpp>

Public Types

using base = Tags::NewmanPenroseTau
using return_type = typename base::type
using argument_tags
Public Types inherited from Cce::Tags::NewmanPenroseTau
using type = Scalar<SpinWeighted<ComplexDataVector, +1>>

Static Public Attributes

static constexpr auto function

Detailed Description

Compute tag for \(\tau\) in the volume.

Details

See documentation of newman_penrose_tau() for definition.

Member Typedef Documentation

◆ argument_tags

using Cce::Tags::NewmanPenroseTauCompute::argument_tags
Initial value:
Bondi parameter .
Definition Tags.hpp:30
Bondi parameter .
Definition Tags.hpp:35
Bondi parameter .
Definition Tags.hpp:88
Bondi parameter .
Definition Tags.hpp:94
The Bondi radius is of the worldtube.
Definition Tags.hpp:368
Coordinate value , which will be cached and sent to the implementing functions.
Definition Tags.hpp:316
Prefix tag representing the spin-weighted derivative of a spin-weighted scalar.
Definition SwshTags.hpp:171
Struct for labeling the spin-weighted derivative in tags.
Definition SwshTags.hpp:50

Member Data Documentation

◆ function

auto Cce::Tags::NewmanPenroseTauCompute::function
staticconstexpr
Initial value:
= static_cast<void (*)(
Require a pointer to not be a nullptr
Definition Gsl.hpp:197
Tensor< T, Symmetry<>, index_list<> > Scalar
Scalar type.
Definition TypeAliases.hpp:21
void newman_penrose_tau(gsl::not_null< Scalar< SpinWeighted< ComplexDataVector,+1 > > * > np_tau, const Scalar< SpinWeighted< ComplexDataVector, 2 > > &bondi_j, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &bondi_k, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &bondi_r, const Scalar< SpinWeighted< ComplexDataVector, 1 > > &bondi_q, const Scalar< SpinWeighted< ComplexDataVector, 1 > > &eth_beta, const Scalar< SpinWeighted< ComplexDataVector, 0 > > &one_minus_y)
Compute the Newman-Penrose spin coefficient in the volume, in the conventions of moxon2020gha .

The documentation for this struct was generated from the following file:
  • src/Evolution/Systems/Cce/NewmanPenrose.hpp