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Spectator stresses and CMB observables
The large-scale curvature perturbations induced by spectator anisotropic stresses are analyzed across the matter-radiation transition. It is assumed that the anisotropic stress is associated with a plasma component whose energy density is subdominant both today and prior to photon decoupling. The en...
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| Lenguaje: | eng |
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2009
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| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.81.127302 http://cds.cern.ch/record/1230430 |