Cosmological consequences of string-forming open inflation models

• Type: Article in International Scientific Journal
• Date: 1999

Authors

Avelino, PP (Author) FCUP; Caldwell, RR (Author) Other; Martins, CJAP (Author) Other

Journal

Title: Physical Review D: Particles and fields

Vol. 59

Pages: 1-8

ISSN: 0556-2821

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 15 Citations

Scopus - 15 Citations

Other information

Authenticus ID: P-001-42B

DOI: 10.1103/physrevd.59.123509

Abstract (EN): We present a study of open inflation cosmological scenarios in which cosmic strings form between the two inflationary epochs. It is shown that ill these models, strings are stretched outside the horizon due to the inflationary expansion, but must necessarily re-enter the horizon before the epoch of equal matter and radiation densities; We determine the linear power spectrum of cold dark matter perturbations in these hybrid models, finding good agreement with observations for values of Gamma = Omega(0)h similar to 0.3 and comparable contributions from the active and passive sources to the cosmic microwave background. Finally, we briefly discuss other cosmological consequences of these models. [S0556-2821(99)03712-1].

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8