Motion of test particles in the gravitational field of cosmic strings in different situations
Subenoy ChakrabortyDepartment of Mathematics, Jadavpur University, Calcutta-700032, IndiaLalit BiswasWeather Section, Regional Meteorological Centre, India Meteorological Department, Government of India, Alipore, Calcutta-700 027, India
1996en
ABI
Abstract
We first analyse the motion of test particles around cosmic strings connected to black holes. We study both the geodesic equations and the Hamilton - Jacobi formalism to determine the trajectories. We have also discussed the FRW cosmological model containing a cosmic string and finally the behaviour of particles in the gravitational field of a domain wall crossed by cosmic strings. In most of the cases we show that the particles cannot be trapped by the cosmic strings.
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