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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Observational Appearance and Spectrum of Black-Hole Winds withSupercritical Accretion Disks
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Observational Appearance and Spectrum of Black-Hole Winds withSupercritical Accretion Disks

机译：超临界吸积盘的黑洞风的观测外观和光谱

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摘要

We examine the observational appearance and expected spectra of an optically thick, spherically symmetric,relativistic wind (a black-hole wind), blowing off from the central region of a geometrically thick supercriticalaccretion disk. Due to the relativistic limb-darkening (center-brightening) effect as well as the usual Doppler boost,the black-hole wind becomes luminous as the wind speed increases. We found that the spectra of the black-holewind is somewhat similar to a blackbody one, while the spectra of a naked supercritical accretion disk is known tohave a flat spectral energy distribution (SED) when viewing from the pole-on direction. In the case of a black-holewind with a supercritical accretion disk, the spectra generally becomes a hybrid type, but we found that in almost allcases the characteristic flat SED of a supercritical disk disappears. That is, when the speed of the wind gas is low, theapparent photosphere of the black-hole wind becomes larger than the supercritical region. In this case the spectra ofa black-hole wind dominates. As the wind speed increases, the apparent photosphere shrinks and the spectra of thedisk emergent. However, when the wind speed becomes sufficiently high, the inner part of the naked supercriticaldisk is not seen, even if the inclination angle is small.
机译：我们研究了从几何厚的超临界吸积盘的中心区域吹出的光学厚度，球形对称，相对论风（黑洞风）的观测外观和预期光谱。由于相对论的肢体变暗（中央变亮）效应以及通常的多普勒增强，黑洞风随着风速的增加而发光。我们发现黑洞风的光谱与黑体的光谱有些相似，而从超极方向看时，裸露的超临界吸积盘的光谱具有平坦的光谱能量分布（SED）。在带有超临界吸积盘的黑洞风的情况下，光谱通常变为混合类型，但是我们发现，在几乎所有情况下，超临界盘的特征平坦SED都消失了。也就是说，当风速低时，黑洞风的视光层变得比超临界区大。在这种情况下，黑洞风的光谱占主导。随着风速的增加，表观光球层缩小，磁盘的光谱出现。但是，当风速变得足够高时，即使倾斜角很小，也看不到裸露的超临界盘的内部。

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