类星体外流的多示踪剂约束：从宽线区到星系尺度的加速
Multi-tracer constraints on quasar outflows. Acceleration from BLR to galactic scales
- University of Trieste（的里雅斯特大学）
- INAF - Osservatorio Astronomico di Trieste（意大利国家天体物理研究所的里雅斯特天文台）
- IFPU - Institute for Fundamental Physics of the Universe（宇宙基础物理研究所）
- Dipartimento di Fisica ”Enrico Fermi”, Università di Pisa（比萨大学费米物理系）
- SISSA – International School for Advanced Studies（国际高等研究院）
- Department of Physics, Virginia Tech（弗吉尼亚理工大学物理系）
- Department of Physics & Astronomy, University of California, Riverside（加州大学河滨分校物理与天文学系）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本研究通过多示踪剂分析148个高光度类星体的CIV发射与BAL吸收，发现外流诊断间存在统计显著关联，表明BAL风由加速的宽线区云团组成，并揭示外流性质随红移的演化。
AI中文摘要：
黑洞驱动的外流是活动星系核（AGN）范式的基本组成部分，可能在调节超大质量黑洞及其宿主星系的演化中发挥重要作用。然而，由于外流的多相和多尺度特性，需要结合不同的互补观测示踪剂，其物理性质仍然难以约束。在这项工作中，我们研究了单个类星体内部从核尺度到星系尺度的AGN驱动的电离外流，旨在确定这些现象是否以及如何在物理上相互关联。我们构建了一个光度匹配的样本，包含148个热光度高于10^47 erg/s的类星体，覆盖红移范围z~2-6.5。我们对CIV发射和宽吸收线（BAL）轮廓进行了均匀分析，以推导不同空间尺度上的外流性质。我们发现基于发射和基于吸收的外流诊断之间存在统计显著的关联，包括最小和最大BAL速度vmin,BAL和vmax,BAL，以及CIV发射线的v98。这些关联在高红移类星体中更为紧密。我们还发现了外流性质随宇宙时间演化的证据，高红移类星体表现出系统性更大的CIV线位移和更宽的轮廓，以及更快的BAL外流。根据我们的外流玩具模型，这些关联表明一种情景：团块状BAL风由被抛出并加速的宽线区气体云组成。
英文摘要：
Black hole-driven outflows are a fundamental component of the Active Galactic Nuclei (AGN) paradigm, and may play a major role in regulating the evolution of both supermassive black holes and their host galaxies. Yet, their physical properties remain challenging to constrain, due to their multi-phase and multi-scale nature which demands a combined approach of different complementary observational tracers. In this work, we investigate AGN-driven ionized outflows from nuclear to galaxy scale within individual quasars, with the aim of establishing whether and how these phenomena are physically connected. We assemble a luminosity-matched sample of 148 quasars with bolometric luminosities higher than 10^47 erg/s, spanning the redshift range z~2-6.5. We perform a homogeneous analysis of CIV emission and broad absorption line (BAL) profiles to derive outflow properties on different spatial scales. We find statistically significant correlations between emission- and absorption-based outflow diagnostics, including the minimum and maximum BAL velocities, vmin,BAL and vmax,BAL, and the v98 of CIV emission lines. These correlations are tighter in high redshift quasars. We also find evidence for an evolution of outflow properties across cosmic time, with high-redshift quasars exhibiting systematically larger CIV line shifts and broader profiles, and faster BAL outflows. According to our outflow toy model, these correlations suggest a scenario in which a clumpy BAL wind is composed of expelled and accelerated broad-line region gas clouds.
