Spin Diagrams for Equal-Mass Black-Hole Binaries with Aligned Spins
| Autor: | Rezzolla, Luciano, Dorband, Ernst Nils, Reisswig, Christian, Diener, Peter, Pollney, Denis, Schnetter, Erik, Szilagyi, Bela |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Astrophys.J. 679:1422-1426,2008 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1086/587679 |
| Popis: | Binary black-hole systems with spins aligned with the orbital angular momentum are of special interest as they may be the preferred end-state of the inspiral of generic supermassive binary black-hole systems. In view of this, we have computed the inspiral and merger of a large set of binary systems of equal-mass black holes with spins aligned with the orbital angular momentum but otherwise arbitrary. By least-square fitting the results of these simulations we have constructed two "spin diagrams" which provide straightforward information about the recoil velocity |v_kick| and the final black-hole spin a_fin in terms of the dimensionless spins a_1 and a_2 of the two initial black holes. Overall they suggest a maximum recoil velocity of |v_kick|=441.94 km/s, and minimum and maximum final spins a_fin=0.3471 and a_fin=0.9591, respectively. Comment: 4 pages, 3 figs; small changes matching published version |
| Databáze: | arXiv |
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