论文标题
用红外干涉测量法确定亚比萨超质量黑洞二进制轨道
Determining sub-parsec supermassive black hole binary orbits with infrared interferometry
论文作者
论文摘要
径向速度监测表明，在某些类星体中存在移动的宽发射线，可能表明存在亚比索二元系统。相引用的近红外干涉观测可以通过测量宽发射线和热尘连续体之间的光中心差来绘制二进制轨道。我们表明，在几年内，天文数据可能能够检测到适当的运动和加速度，从而确认存在二进制和约束系统参数。当前候选者的亮度，红移和星体大小与升级的VLTI/Geartity+仪器的功能非常匹配，我们确定了10个可能的候选者的第一个样本。天文标志取决于超级质量黑洞二进制系统中热灰尘发射的形态和演变。光上心偏移的测量值可能揭示二进制运动是二进制运动是固定在电路磁盘的内边缘，还是响应从积聚次级黑洞的变化辐射模式而移动。
Radial velocity monitoring has revealed the presence of moving broad emission lines in some quasars, potentially indicating the presence of a sub-parsec binary system. Phase-referenced, near-infrared interferometric observations could map out the binary orbit by measuring the photocenter difference between a broad emission line and the hot dust continuum. We show that astrometric data over several years may be able to detect proper motions and accelerations, confirming the presence of a binary and constraining system parameters. The brightness, redshifts, and astrometric sizes of current candidates are well matched to the capabilities of the upgraded VLTI/GRAVITY+ instrument, and we identify a first sample of 10 possible candidates. The astrometric signature depends on the morphology and evolution of hot dust emission in supermassive black hole binary systems. Measurements of the photocenter offset may reveal binary motion whether the hot dust emission region is fixed to the inner edge of the circumbinary disk, or moves in response to the changing irradiation pattern from an accreting secondary black hole.
