Premium
On the Behaviour of Test Matter in the Neighbourhood of Caustics of Homogeneous Cosmological Models
Author(s) -
Paul H. G.
Publication year - 1983
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113040104
Subject(s) - physics , asymptote , caustic (mathematics) , geodesic , scalar field , neighbourhood (mathematics) , singularity , gravitation , homogeneous , bounded function , theoretical physics , mathematical physics , classical mechanics , mathematical analysis , mathematics , statistical physics
Using power asymptotes for the metric of the metric of the B IANCHI types I, V, VII O , VIII and IX the intensity of geodesic focused scalar test matter is calculated in the neighbourhood of the caustic singularity of these space‐time models. In all considered B IANCHI types there is a caustic diffraction field bounded by regions of extinction depending on the structure of the gravitational lense.