We investigate the effect of vorticity perturbations of an arbitrary Robertson-Walker universe on the isotropy of the cosmic microwave background. The predicted temperature variations are compared with the upper limits recently found by Parijskij (1974). In this way we obtain an upper limit on the present vorticity scales L ~ 10 Mpc wich only marginally consistent with the value suggested by de Vaucoulerurs (1971), de Vaucouleurs and Peters (1968).

Vorticity perturbations and isotropy of the cosmic microwave background

MOTTA, Santo
1976

Abstract

We investigate the effect of vorticity perturbations of an arbitrary Robertson-Walker universe on the isotropy of the cosmic microwave background. The predicted temperature variations are compared with the upper limits recently found by Parijskij (1974). In this way we obtain an upper limit on the present vorticity scales L ~ 10 Mpc wich only marginally consistent with the value suggested by de Vaucoulerurs (1971), de Vaucouleurs and Peters (1968).
Robertson-Walker universes; vorticity perturbations; isotropy of the cosmic microwave background
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/245897
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