Microwave background anisotropy induced by gravitational waves

Journal Article · Tue Mar 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166113· OSTI ID:6995357

Linder, E V

A cosmological background of gravitational waves induces redshift perturbations in light transversing it. Calculations of this Sachs-Wolfe effect on the microwave background are presented in an Omega = 1 Friedmann universe as a function of angular scale and gravitational wave spectrum. Blurriness of the last-scattering surface can cause nonnegligible dilution of the anisotropy for wavelengths less than about 100 Mpc. The limit implied for the energy density of the gravitational waves is given. A difficulty in associating a linear scale with an angular anisotropy, due to the clumpiness of the universe, is also pointed out. 23 references.

• Research Organization: Stanford Univ., CA (USA)
• OSTI ID: 6995357
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 326; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR CORRELATION
ANISOTROPY
CORRELATIONS
COSMOLOGICAL MODELS
COSMOLOGY
ELECTROMAGNETIC RADIATION
FLUCTUATIONS
GRAVITATIONAL WAVES
MATHEMATICAL MODELS
MICROWAVE RADIATION
RADIATIONS
RED SHIFT
RELICT RADIATION
VARIATIONS