Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...120..109s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 120, no. 1, April 1983, p. 109-112.
Astronomy and Astrophysics
Astrophysics
Astronomical Models, Cosmology, Gravitational Waves, Relativity, Differential Equations, Dust, Isotropy, Linear Equations, Mathematical Models
Scientific paper
The author considers the evolution of shear and gravitational waves, larger than the Hubble length, in Friedmann universes. By considering a perfect fluid with a linear equation of state, p = nρ, he obtains exact analytical solutions for the perturbations in the flat case and closed-form solutions in the open and closed cases if the content of the Universe is represented either by dust, p = 0, or radiation, p = ρ/3. The behaviour of the different relative quantities, during the evolution of the different models, is analyzed. Regarding our real Universe, the author states the difficulty to explain the present observed homogeneity and isotropy unless one postulates special initial conditions.
No associations
LandOfFree
The evolution of shear and gravitational wave perturbations of Friedmann models and the isotropy of the universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The evolution of shear and gravitational wave perturbations of Friedmann models and the isotropy of the universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The evolution of shear and gravitational wave perturbations of Friedmann models and the isotropy of the universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1232939