Hyperbolic universes with a horned topology and the cosmic microwave background anisotropy

Ralf Aurich, Sven Lustig, Frank Steiner, Holger Then

Research output: Contribution to journalArticle (Academic Journal)

35 Citations (Scopus)

Abstract

We analyse the anisotropy of the cosmic microwave background (CMB) in hyperbolic universes possessing a non-trivial topology with a fundamental cell having an infinitely long horn. The aim of this paperis twofold. On the one hand, we show that the horned topology does not lead to a flat spot in the CMB sky maps in the direction of the horn asstated in the literature. On the other, we demonstrate that a horned topology having a finite volume could explain the suppression of the lower multipoles in the CMB anisotropy as observed by COBE and WMAP.
Original languageEnglish
Pages (from-to)4901-4925
Number of pages25
JournalClassical and Quantum Gravity
Volume21
Issue number21
Early online date7 Oct 2004
DOIs
Publication statusPublished - 7 Nov 2004

Fingerprint Dive into the research topics of 'Hyperbolic universes with a horned topology and the cosmic microwave background anisotropy'. Together they form a unique fingerprint.

  • Cite this