2 papers
gr-qc2000
Comment on "Formation of primordial black holes by cosmic strings"
R. N. Hansen, M. Christensen, A. L. Larsen
We show that in a pioneering paper by Polnarev and Zembowicz, some conclusions concerning the characteristics of the Turok-strings are generally not correct. In addition we show th…
gr-qc1999
Cosmic String Loops Collapsing to Black Holes
R. N. Hansen, M. Christensen, A. L. Larsen
We examine the question of collapse of Turok's two-parameter family of cosmic strings. We first perform a classification of the strings according to the specific time(s) at which t…