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arXiv 1004.1797astro-ph.HE
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Super Eddington Slim吸积盘,带风

Super Eddington Slim Accretion Disks with Winds

Calanit Dotan, Nir J. Shaviv

摘要:

我们通过允许形成有效不透明度降低的多孔层来构建围绕恒星和超大质量黑洞的超级爱丁顿超薄模型。我们表明,在高吸积率,内部的磁盘成为辐射压力为主。然而,与磁盘变厚的标准情况不同,超级爱丁顿磁盘仍然很薄。此外,它们加速了具有“厚盘”几何形状的显著风。我们表明,以上约1.5倍的标准临界质量吸积率(需要释放爱丁顿光度),净光度释放是爱丁顿以上。当中心黑洞的吸积速率大于标准临界速率的5倍时,中心黑洞的吸积速率大于爱丁顿黑洞的吸积速率。在大约20 m-dot_crit以上,气盘仍然很薄,但风变成球形,目前的模型崩溃了。

英文摘要:

We construct Super-Eddington Slim Disks models around both stellar and super-massive black holes by allowing the formation of a porous layer with a reduced effective opacity. We show that at high accretion rates, the inner part of the disks become radiation pressure dominated. However, unlike the standard scenario in which the disks become thick, super-Eddington disks remain slim. In addition, they accelerate a significant wind with a "thick disk" geometry. We show that above about 1.5 times the standard critical mass accretion rate (needed to release the Eddington luminosity), the net luminosity released is above Eddington. At above about 5 times the standard critical rate, the central BH accretes more than the Eddington accretion rate. Above about 20 m-dot_crit, the disk remains slim but the wind becomes spherical, and the present model breaks down.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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