论文标题
二进制X射线源巨大的Brans-Dicke重力
Binary X-ray sources in massive Brans-Dicke gravity
论文作者
论文摘要
这项研究的重点是在巨大的brans-dicke重力中低质量黑洞二进制的X射线发射。首先，我们计算采用众所周知的shakura-sunyaev模型的积聚磁盘，用于光学较厚，凉爽和几何薄的磁盘。此外，我们假设由恒星质量黑洞产生的引力场是爱因斯坦理论的Schwarzschild时空的类似物。我们计算最相关的含量的兴趣量，即i）径向速度，ii）能量和表面密度，以及iii）压力完全是径向坐标的函数。我们还计算了磁盘产生的X射线发射的软光谱成分。此外，我们详细研究了标量场的质量如何修饰二进制的属性，如更标准的Schwarzschild解决方案所述。
This study focuses on the X-ray emission of low-mass black hole binaries in massive Brans-Dicke gravity. First, we compute the accretion disk adopting the well-known Shakura-Sunyaev model for an optically thick, cool, and geometrically thin disk. Moreover, we assume that the gravitational field generated by the stellar-mass black hole is an analogue of the Schwarzschild space-time of Einstein's theory in massive Brans-Dicke gravity. We compute the most relevant quantities of interest, i.e., i) the radial velocity, ii) the energy and surface density, and iii) the pressure as a function entirely of the radial coordinate. We also compute the soft spectral component of the X-ray emission produced by the disk. Furthermore, we investigate in detail how the mass of the scalar field modifies the properties of the binary as described by the more standard Schwarzschild solution.
