Determining Cosmological Parameters from the Microwave Background

Details Determining Cosmological Parameters from the Microwave Background Determining Cosmological Parameters from the Microwave Background

1996-05-23

arxiv.org/abs/astro-ph/9605147v2

Nucl.Phys.Proc.Suppl. 51B (1996) 49-53

Astronomy and Astrophysics

Astrophysics

To appear in Proceedings of the UCLA Dark Matter '96 conference. 7 pages Revtex, 1 figure. Revised version includes recalculat

Scientific paper

10.1016/S0920-5632(96)00481-1

Recently funded satellites will map the cosmic microwave background radiation with unprecedented sensitivities and angular resolutions. Assuming only primordial adiabatic scalar and tensor perturbations, we evaluate how accurately experiments of this type will measure the basic cosmological parameters $\Omega$ (the total density of the Universe), $\Omega_b$ (the baryon density), $h$ (the Hubble constant), and $\Lambda$ (the cosmological constant). The proposed experiments are capable of measuring these parameters at the few-percent level. We briefly discuss the generality of these estimates and complications arising in actual data analysis.

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