SpECTRE
v2024.05.11
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Compute tag for the quadrupole moment. More...
#include <QuadrupoleFormula.hpp>
Public Types | |
using | argument_tags = tmpl::list< TildeD, OutputCoordsTag > |
using | base = hydro::Tags::QuadrupoleMoment< DataType, Dim, Fr > |
using | return_type = typename base::type |
Public Types inherited from hydro::Tags::QuadrupoleMoment< DataType, Dim, Frame::Inertial > | |
using | type = tnsr::ii< DataType, Dim, Frame::Inertial > |
Static Public Attributes | |
static constexpr auto | function |
Compute tag for the quadrupole moment.
Compute item for the quadrupole moment, using \(\tilde{D} x^i x^j\) (equation 21 of [164]), with \(\tilde{D}=\sqrt{\gamma}\rho W\), \(W\) being the Lorentz factor, \(\gamma\) being the determinant of the spatial metric, and \(x\) the coordinates in Frame Fr.
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staticconstexpr |