活动星系核盘风与宽线区的关联研究

精确测量黑洞质量是研究活动星系核物理性质的基础课题之一，提高黑洞质量测量精度的根本是充分理解宽线区的结构、起源和稳定性。但是，目前存在的主要问题有：(1)宽线区运动学结构包括转动、内流和外流的起源缺乏系统研究；(2)随着反响映射样本的逐步扩大，宽线区尺度—光度关系呈现出越来越大的多样性弥散。产生于吸积盘内区的盘风可能作为活动星系核统一模型的新成分与环境(其它成分)相互作用并影响环境，其中宽线区的结构、起源和稳定性可能与大尺度多相盘风存在普遍联系。因此，本项目将依托我国2.4米望远镜，聚焦一类具有盘风特征的活动星系核，开展光谱研究和基于反响映射的光谱时序研究；建立这类活动星系核的一维和二维反响映射样本；结合盘风性质和宽线区运动学特征追踪宽线区的起源、调查宽线区尺度—光度关系弥散的本质并限制宽线区物理。本项目有望在揭示宽线区起源和提高活动星系核中心黑洞质量测量精度方面起到促进作用。

Accurate measurement of the supermassive black hole mass (SMBH) is one of the basic subjects for studying the physical properties of Active Galactic Nuclei (AGN), the key of improving measurement accuracy of the SMBH is to fully appreciate the structures, origins and stabilities of the broad-line region (BLR). Actually, the origins of the kinematic structures of the BLR including rotation, inflow and outflow are far from understood; the radius--luminosity relationship shows more and more diversity dispersion with increasing samples of reverberation mapping (RM). The disc winds launched from inner disc may be a new component of the unified AGN model and interact with the environment, where the structures, origins and stabilities of the BLR may be generally related to the large-scale and multiphase disc winds. Therefore, the project will rely on the Lijiang 2.4-meter telescope in China to focus on a special kind of AGN with the characteristics of the disc winds, carry out spectral research and spectral timing research based on RM; construct one- and two-dimension RM samples of this kind of AGN; trace the origins of the BLR, investigate the nature of the dispersion of the radius--luminosity relationship and constrain the physics of the BLR by combining the disc-wind properties and the kinematic signatures of the BLR. This project may shed lights to the origin of the BLR and is expected to play a role in improving the measurement accuracy of the SMBH.