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The Case for Hypercritical Accretion in M33 X−7
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mendez, E. M. A. M. |
| Copyright Year | 2008 |
| Abstract | The spin parameter of the black hole in M33 X−7 has recently been measured to be a⋆ = 0.77±0.05 (Liu et al. 2008). It has been proposed that the spin of the 15.65M⊙ black hole is natal. We show that this is not a viable evolutionary path given the observed binary orbital period of 3.45 days since the explosion that would produce a black hole with the cited spin parameter and orbital period would disrupt the binary. Furthermore, we show that the system has to be evolved through the hypercritical mass transfer of ∼ 5M⊙ from the secondary star to the black hole. Subject headings: binaries: close — gamma rays: bursts — black hole physics — supernovae: general — X-rays: binaries |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/0809.2146v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Black Hole CBX2 wt Allele GUCY2C protein, human Gamma Rays Granular computing Medical Subject Headings Molecular orbital Population Parameter Rajiformes |
| Content Type | Text |
| Resource Type | Article |
