Remnants of compact binary mergers |
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Authors: | W. Domainko M. Ruffert |
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Affiliation: | 1. Max-Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany;2. School of Mathematics, University of Edinburgh, Edinburgh EH9 3JZ, Scotland, UK |
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Abstract: | We investigate the long-term evolution and observability of remnants originating from the merger of compact binary systems and discuss the differences to supernova remnants. Compact binary mergers expel much smaller amounts of mass at much higher velocities, as compared to supernovae, which will affect the dynamical evolution of their remnants. The ejecta of mergers consist of very neutron rich nuclei. Some of these neutron rich nuclei will produce observational signatures in form of gamma ray lines during their decay. The composition of the ejecta might even give interesting constraints about the internal structure of the neutron star. We further discuss the possibility that merger remnants appear as recently discovered ‘dark accelerators’ which are extended TeV sources which lack emission in other bands. |
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Keywords: | Compact binary mergers Remnants Gamma ray lines Gamma ray bursts Dark particle accelerators |
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