No black holes from cosmic string cusps
arXiv:2101.05040
Abstract
Recent work by Jenkins and Sakellariadou claims that cusps on cosmic strings lead to black hole production. To derive this conclusion they use the hoop conjecture in the rest frame of the string loop, rather than in the rest frame of the proposed black hole. Most of the energy they include is the bulk motion of the string near the cusp. We redo the analysis taking this into account and find that cusps on cosmic strings with realistic energy scale do not produce black holes, unless the cusp parameters are extremely fine-tuned.
arXiv comment5 pages, revtex
References in corpus (12)
- Planck 2013 results. XXV. Searches for cosmic strings and other topological defects
- New limits on cosmic strings from gravitational wave observation
- Constraints on cosmic string tension imposed by the limit on the stochastic gravitational wave background from the European Pulsar Timing Array
- Constraints on cosmic strings using data from the first Advanced LIGO observing run
- Formation of Black Holes from Collapsed Cosmic String Loops
- The form of cosmic string cusps
- Cosmic String Loop Collapse in Full General Relativity
- Primordial black holes from cusp collapse on cosmic strings
- Coherent Gravitational Waveforms and Memory from Cosmic String Loops
- Constraints on the cosmic string loop collapse fraction from Primordial Black Holes
- Constraints on Cosmic Strings due to Black Holes Formed from Collapsed Cosmic String Loops
- Cosmic String Loops Collapsing to Black Holes