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On the Maximum Mass of Stellar Black Holes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Belczýnski, Krzysztof Bulik, Tomasz Fryer, Chris L. Ruiter, A. J. H. De Vink, Jorick S. Hurley, Jarrod R. |
| Copyright Year | 2009 |
| Abstract | We present the spectrum of compact object masses: neutron stars and black holes that originate from single stars in different environments. In particular, we show the dependence of maximum black hole mass on metallicity and on some specific wind mass loss rates (e.g., Hurley et al. and Vink et al.). We demonstrate that the highest mass black holes observed in the Galaxy Mbh ∼ 15 M⊙ in the high metallicity environment (Z = Z⊙ = 0.02) can be explained with stellar models and the wind mass loss rates adopted here. To reach this conclusion it was required to set Luminous Blue Variable mass loss rates at the level of ∼ 10 M⊙ yr −1 and to employ metallicity dependent Wolf-Rayet winds. With the calibrated (on Galactic black hole mass measurements) winds the maximum black hole mass predicted for moderate metallicity (Z = 0.3 Z⊙ = 0.006) is Mbh,max = 30 M⊙. This is a rather striking finding as the mass of the most massive known stellar black hole is Mbh = 23− 34 M⊙ and, in fact, it is located in a small star forming galaxy with moderate metallicity. It is also predicted that in the very low (globular cluster-like) metallicity environment the maximum black hole mass can be as high as Mbh,max = 80 M⊙ (Z = 0.01Z⊙ = 0.0002). We emphasize that our results were obtained for single stars only and that binary interactions may alter the predictions (e.g., accretion from a close companion) for maximum black hole masses. This is strictly a proof-of-principle study which demonstrates that stellar models can naturally explain even the most massive known stellar black holes. Subject headings: binaries: close — black hole physics — gravitational waves — stars: evolution — stars: neutron |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/0904.2784v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | ABRA gene Black Hole Command & Conquer:Yuri's Revenge Entity Name Part Qualifier - adopted Environmental Wind GUCY2C protein, human Interaction Luminous Studio Medical Subject Headings Neutrons Sensorineural Hearing Loss (disorder) Stars, Celestial Stellar (payment network) |
| Content Type | Text |
| Resource Type | Article |
