The Imprint of $Ω$ on the Cosmic Microwave Background

Details The Imprint of $Ω$ on the Cosmic Microwave Background The Imprint of $Ω$ on the Cosmic Microwave Background

1994-06-08

arxiv.org/abs/astro-ph/9406026v1

Phys.Rev.Lett. 73 (1994) 509-513

Astronomy and Astrophysics

Astrophysics

Phys.Rev.Lett. in press; 12 pages+ 2 figs; uuencoded compressed file (complete with figures); CfPA-TH-94-17

Scientific paper

10.1103/PhysRevLett.73.509

We investigate the dependence of large angular scale cosmic microwave background anisotropies on various initial conditions, including both adiabatic and isocurvature perturbations and the initial power law index $n$, in a variety of low-$\Omega$ cosmological models. Cosmological constant- dominated flat models and inflationary open adiabatic models, with $n_{\rm eff}<1$, and open isocurvature models, with $n_{\rm eff} \simeq 2$, are significantly constrained by the present observations.

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