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Constraints on Cosmic Strings Due to Black Holes Formed from Collapsed Cosmic String Loops PDF
By:National Aeronaut Administration (Nasa)
Published on 2018-08-16 by

The cosmological features of primordial black holes formed from collapsed cosmic string loops are studied. Observational restrictions on a population of primordial black holes are used to restrict f, the fraction of cosmic string loops which collapse to form black holes, and mu, the cosmic string mass-per-unit length. Using a realistic model of cosmic strings, we find the strongest restriction on the parameters f and mu is due to the energy density in 100MeV photons radiated by the black holes. We also find that inert black hole remnants cannot serve as the dark matter. If earlier, crude estimates of f are reliable, our results severely restrict mu, and therefore limit the viability of the cosmic string large-scale structure scenario. Caldwell, R. R. and Gates, Evalyn Unspecified Center NASA-CR-193248, NAS 1.26:193248, FERMILAB-PUB-93/137-A, DE93-016549 NAGW-2381...

This Book was ranked at 16 by Google Books for keyword Black hole.

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Book which was published by since 2018-08-16 have ISBNs, ISBN 13 Code is 9781725606104 and ISBN 10 Code is 1725606100

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