Generalized CMB initial conditions with pre-equality magnetic fields

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dc.creatorGiovannini, Massimo
dc.creatorKunze, Kerstin E.
dc.date2008-02-07
dc.date.accessioned2026-07-07T11:40:12Z
dc.date.available2026-07-07T11:40:12Z
dc.descriptionThe most general initial conditions of CMB anisotropies, compatible with the presence of pre-equality magnetic fields, are derived. When the plasma is composed by photons, baryons, electrons, CDM particles and neutrinos, the initial data of the truncated Einstein-Boltzmann hierarchy contemplate one magnetized adiabatic mode and four (magnetized) non-adiabatic modes. After obtaining the analytical form of the various solutions, the Einstein-Boltzmann hierarchy is numerically integrated for the corresponding sets of initial data. The TT, TE and EE angular power spectra are illustrated and discussed for the magnetized generalization of the CDM-radiation mode, of the baryon-radiation mode and of the non-adiabatic mode of the neutrino sector. Mixtures of initial conditions are examined by requiring that the magnetized adiabatic mode dominates over the remaining non-adiabatic contributions. In the latter case, possible degeneracies between complementary sets of initial data might be avoided through the combined analysis of the TT, TE and EE angular power spectra at high multipoles (i.e. $\ell >1000$).
dc.description28 pages, 24 included figures in eps style
dc.identifierhttps://arxiv.org/abs/0802.1053
dc.identifierhttp://arxiv.org/abs/0802.1053
dc.identifierPhys.Rev.D77:123001,2008
dc.identifierdoi:10.1103/PhysRevD.77.123001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200178
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleGeneralized CMB initial conditions with pre-equality magnetic fields
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