English

CMB Anisotropy in COBE-DMR-Normalized Flat $\Lambda$ CDM Cosmogony

Astrophysics 2015-06-24 v1

Abstract

We compute the cosmic microwave background (CMB) anisotropy in a low-density, flat, cosmological constant, cold dark matter model which is normalized to the two-year COBE DMR sky map. Although conclusions regarding model viability must remain tentative until systematic effects are better understood, there are mild indications that these models have more intermediate scale power than is indicated by presently available CMB anisotropy observational data, with old (t01516t_0 \geq 15-16Gyr), high baryon density (ΩB0.0175h2\Omega_B \geq 0.0175 h^{-2}), low density (Ω00.20.4\Omega_0 \sim 0.2-0.4) models doing the worst.

Keywords

Cite

@article{arxiv.astro-ph/9512157,
  title  = {CMB Anisotropy in COBE-DMR-Normalized Flat $\Lambda$ CDM Cosmogony},
  author = {Bharat Ratra and Naoshi Sugiyama},
  journal= {arXiv preprint arXiv:astro-ph/9512157},
  year   = {2015}
}

Comments

9 pages including 2 figures, one 5 pages table: two uuencoded postscript files