{"work":{"id":"8132fd5f-e32e-43dc-ae76-d692d493fae7","openalex_id":null,"doi":null,"arxiv_id":"1712.04937","raw_key":null,"title":"Post-Newtonian Dynamics in Dense Star Clusters: Highly-Eccentric, Highly-Spinning, and Repeated Binary Black Hole Mergers","authors":null,"authors_text":"C","year":2017,"venue":"astro-ph.HE","abstract":"We present models of realistic globular clusters with post-Newtonian dynamics for black holes. By modeling the relativistic accelerations and gravitational-wave emission in isolated binaries and during three- and four-body encounters, we find that nearly half of all binary black hole mergers occur inside the cluster, with about 10% of those mergers entering the LIGO/Virgo band with eccentricities greater than 0.1. In-cluster mergers lead to the birth of a second generation of black holes with larger masses and high spins, which, depending on the black hole natal spins, can sometimes be retained in the cluster and merge again. As a result, globular clusters can produce merging binaries with detectable spins regardless of the birth spins of black holes formed from massive stars. These second-generation black holes would also populate any upper mass gap created by pair-instability supernovae.","external_url":"https://arxiv.org/abs/1712.04937","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-24T01:35:56.220656+00:00","pith_arxiv_id":"1712.04937","created_at":"2026-05-10T12:10:22.334891+00:00","updated_at":"2026-06-05T21:23:00.469572+00:00","title_quality_ok":true,"display_title":"Post-Newtonian Dynamics in Dense Star Clusters: Highly-Eccentric, Highly-Spinning, and Repeated Binary Black Hole Mergers","render_title":"Post-Newtonian Dynamics in Dense Star Clusters: Highly-Eccentric, Highly-Spinning, and Repeated Binary Black Hole Mergers"},"hub":{"state":{"work_id":"8132fd5f-e32e-43dc-ae76-d692d493fae7","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":10,"external_cited_by_count":null,"distinct_field_count":2,"first_pith_cited_at":"2019-03-11T17:43:43+00:00","last_pith_cited_at":"2026-05-20T18:51:46+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-06-10T16:56:59.915777+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":6}],"polarity_counts":[{"context_polarity":"background","n":4},{"context_polarity":"unclear","n":2}],"runs":{},"summary":{},"graph":{},"authors":[]}}