Cosmic-string-seeded structure formation

• Type: Article in International Scientific Journal
• Date: 1998

Authors

Avelino, PP (Author) Other; Shellard, EPS (Author) Other; Wu, JHP (Author) Other; Allen, B (Author) Other

Journal

Title: Physical Review Letters

Vol. 81

Pages: 2008-2011

ISSN: 0031-9007

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 46 Citations

Scopus - 42 Citations

Other information

Authenticus ID: P-001-73N

DOI: 10.1103/physrevlett.81.2008

Abstract (EN): We describe the results of high-resolution numerical simulations of string-induced structure formation in open universes and those with a nonzero cosmological constant. For models with Gamma = Omega h = 0.1-0.2 and a cold dark matter background, we show that the linear density fluctuation power spectrum has both an amplitude at 8h(-1) Mpc, sigma(8), and an overall shape which are consistent within uncertainties with those currently inferred from galaxy surveys. The cosmic string scenario with hot dark matter requires a strongly scale-dependent bias in order to agree with observations.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4