The host galaxies of double compact objects merging in the local Universe

  title={The host galaxies of double compact objects merging in the local Universe},
  author={Michela Mapelli and Nicola Giacobbo and Mattia Toffano and Emanuele Ripamonti and Alessandro Bressan and Mario Spera and Marica Branchesi},
  journal={Monthly Notices of the Royal Astronomical Society},
We investigate the host galaxies of compact objects merging in the local Universe, by combining the results of binary population-synthesis simulations with the Illustris cosmological box. Double neutron stars (DNSs) merging in the local Universe tend to form in massive galaxies (with stellar mass $>10^{9}$ M$_\odot$) and to merge in the same galaxy where they formed, with a short delay time between the formation of the progenitor stars and the DNS merger. In contrast, double black holes (DBHs… 

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