Hβ 宽线区的维里系数依赖于什么?
星系天体物理
2026-04-29 v1
摘要
我们将 Lick AGN 监测项目 2016 样本中的动力学建模黑洞质量测量与测得的交叉相关时间滞后和线宽相结合,以恢复传统反响映射分析中使用的个体比例因子 f。我们通过纳入先前利用我们方法的 Code for AGN Reverberation and Modeling of Emission Lines (caramel) 研究的结果扩展了样本。旨在提高黑洞质量估计的精度并揭示宽线区(BLR)行为的任何规律性,我们搜寻 f 与其他 AGN/BLR 参数间的相关性。我们发现 (i) 维里系数 log10(fmean,{\sigma}) 与黑洞质量间存在相关性的证据,(ii) log10(frms,{\sigma}) 与黑洞质量间存在类似相关性的边际证据,(iii) BLR 盘厚度与 log10(fmean,FWHM) 和 log10(frms,FWHM) 呈反相关的边际证据,以及 (iv) 倾角与 log10(fmean,FWHM)、log10(frms,{\sigma}) 和 log10(fmean,{\sigma}) 呈反相关的边际证据。最后,我们发现当使用均方根谱时线型轮廓 log10(FWHM/{\sigma})rms 与维里系数 log10(frms,{\sigma}) 间存在相关性的边际证据,并利用 caramel 模型探究 BLR 性质如何与线型轮廓相关联。
引用
@article{arxiv.2304.06764,
title = {What Does the Virial Coefficient of the \Hb Broad-Line Region Depend On?},
author = {Lizvette Villafaña and Peter R. Williams and Tommaso Treu and Brendon J. Brewer and Aaron J. Barth and Vivian U and Vardha N. Bennert and Hengxiao Guo and Misty C. Bentz and Gabriela Canalizo and Alexei V. Filippenko and Elinor Gates and Michael D. Joner and Matthew A. Malkan and Jong-Hak Woo and Bela Abolfathi and Thomas Bohn and K. Azalee Bostroem and Andrew Brandel and Thomas G. Brink and Sanyum Channa and Maren Cosens and Edward Donohue and Goni Halevi and Carol E. Hood and J. Chuck Horst and Maxime de Kouchkovsky and Benjamin Kuhn and Douglas C. Leonard and Raul Michel and Melanie Kae B. Olaes and Daeseong Park and Jordan N. Runco and Remington O. Sexton and Isaac Shivvers and Chance L. Spencer and Benjamin E. Stahl and Samantha Stegman and Jonelle L. Walsh and WeiKang Zheng},
journal= {arXiv preprint arXiv:2304.06764},
year = {2026}
}
备注
17 pages, 10 figures