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A Complete Treatment of CMB Anisotropies in a FRW Universe

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arxiv astro-ph/9709066 v2 pith:AWLBBUIB submitted 1997-09-09 astro-ph

A Complete Treatment of CMB Anisotropies in a FRW Universe

classification astro-ph
keywords anisotropiescalculationscalartreatmentuniverseallowsangulararbitrary
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We generalize the total angular momentum method for computing Cosmic Microwave Background anisotropies to Friedman-Robertson-Walker (FRW) spaces with arbitrary geometries. This unifies the treatment of temperature and polarization anisotropies generated by scalar, vector and tensor perturbations of the fluid, seed, or a scalar field, in a universe with constant comoving curvature. The resulting formalism generalizes and simplifies the calculation of anisotropies and, in its integral form, allows for a fast calculation of model predictions in linear theory for any FRW metric.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. CAMB v2: cosmological power spectra for high-precision surveys

    astro-ph.CO 2026-07 accept novelty 7.0

    CAMB v2's default settings produce lensed CMB and matter power spectra converged to 10^-3 over survey-relevant scales, using a new flat-Bessel mapping for hyperspherical Bessel functions.

  2. On the potential for inhomogeneities to mimic an evolving dark energy

    astro-ph.CO 2026-06 unverdicted novelty 4.0

    Numerical simulations show that inhomogeneities in a LambdaCDM universe can lead some observers to infer evolving dark energy parameters consistent with DESI at 2-sigma.