来自 DES 标准星场连续谱反响映射的类星体吸积盘尺寸
星系天体物理
2020-02-14 v2
摘要
测量活动星系核中吸积盘的物理性质对于更好地理解超大质量黑洞的增长和演化十分重要。我们呈现了来自连续谱反响映射的 22 个类星体的吸积盘尺寸，数据取自暗能量巡天（DES）标准星场和超新星 C 场。我们构建了带有 \textit{griz} 测光的连续谱光变曲线，涵盖五个季节的 DES 观测。这些数据以短至一天的 cadence 采样类星体的时间变率，对应于比以往多数工作高几倍的静止系 cadence。我们用 JAVELIN 和插值互相关函数方法推导波段间时间滞后，并使用 JAVELIN 薄盘模型拟合吸积盘尺寸。这些新测量包括围绕质量小至 黑洞的盘，其在 2500\AA 处的等效静止系尺寸小至 光日。我们发现，当我们考虑盘变率时，大多数天体的吸积盘尺寸与标准薄盘模型的预测一致。我们还模拟了大型综合巡天望远镜深钻场在各种观测场景下吸积盘测量的预期产量。我们发现，若默认 cadence 从三天改为两天或一天，盘测量数量将显著增加。
引用
@article{arxiv.1811.03638,
title = {Quasar Accretion Disk Sizes from Continuum Reverberation Mapping in the DES Standard Star Fields},
author = {Zhefu Yu and Paul Martini and T. M. Davis and R. A. Gruendl and J. K. Hoormann and C. S. Kochanek and C. Lidman and D. Mudd and B. M. Peterson and W. Wester and S. Allam and J. Annis and J. Asorey and S. Avila and M. Banerji and E. Bertin and D. Brooks and E. Buckley-Geer and J. Calcino and A. Carnero Rosell and D. Carollo and M. Carrasco Kind and J. Carretero and C. E. Cunha and C. B. D'Andrea and L. N. da Costa and J. De Vicente and S. Desai and H. T. Diehl and P. Doel and T. F. Eifler and B. Flaugher and P. Fosalba and J. Frieman and J. García-Bellido and E. Gaztanaga and K. Glazebrook and D. Gruen and J. Gschwend and G. Gutierrez and W. G. Hartley and S. R. Hinton and D. L. Hollowood and K. Honscheid and B. Hoyle and D. J. James and A. G. Kim and E. Krause and K. Kuehn and N. Kuropatkin and G. F. Lewis and M. Lima and E. Macaulay and M. A. G. Maia and J. L. Marshall and F. Menanteau and R. Miquel and A. Möller and A. A. Plazas and A. K. Romer and E. Sanchez and V. Scarpine and M. Schubnell and S. Serrano and M. Smith and R. C. Smith and M. Soares-Santos and F. Sobreira and E. Suchyta and E. Swann and M. E. C. Swanson and G. Tarle and B. E. Tucker and D. L. Tucker and V. Vikram},
journal= {arXiv preprint arXiv:1811.03638},
year = {2020}
}
备注
33 pages, 24 figures