Space Telescope and Optical Reverberation Mapping Project. XII. Broad-line Region Modeling of NGC 5548
Space Telescope and Optical Reverberation Mapping Project. XII. Broad-line Region Modeling of NGC 5548
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DOI：
10.3847/1538-4357/abbad7
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
P. Williams;A. Pancoast;T. Treu;B. Brewer;B. Peterson;A. Barth;M. Malkan;G. D. Rosa;K. Horne;G. Kriss;N. Arav;M. Bentz;E. Cackett;E. Bontà;M. Dehghanian;C. Done;G. Ferland;C. Grier;J. Kaastra;E. Kara;C. Kochanek;S. Mathur;M. Mehdipour;R. Pogge;D. Proga;M. Vestergaard;T. Waters;S. Adams;M. Anderson;P. Ar'evalo;T. Beatty;V. Bennert;A. Bigley;S. Bisogni;G. Borman;T. Boroson;M. Bottorff;W. Brandt;A. Breeveld;M. Brotherton;J. E. Brown;J. Brown;G. Canalizo;M. Carini;K. Clubb;J. Comerford;E. Corsini;D. Crenshaw;S. Croft;K. Croxall;A. Deason;A. D. Lorenzo-C'aceres;K. Denney;M. Dietrich;R. Edelson;N. Efimova;J. Ely;P. Evans;M. Fausnaugh;A. Filippenko;K. Flatland;O. Fox;E. Gardner;E. Gates;N. Gehrels;S. Geier;J. Gelbord;L. Gonzalez;V. Gorjian;J. Greene;D. Grupe;A. Gupta;P. Hall;C. Henderson;S. Hicks;E. Holmbeck;T. Holoien;T. Hutchison;M. Im;J. Jensen;C. Johnson;M. Joner;J. Jones;S. Kaspi;P. Kelly;J. Kennea;M. Kim;S. Kim;S. Kim;A. King;S. Klimanov;C. Knigge;Y. Krongold;M. W. Lau;J. Lee;D. Leonard;Miao Li;P. Lira;C. Lochhaas;Zhiyuan Ma;E. Manne-Nicholas;F. Macinnis;J. Mauerhan;R. McGurk;I. M. Hardy;C. Montuori;L. Morelli;A. Mosquera;D. Mudd;F. Muller-S'anchez;S. Nazarov;R. Norris;J. Nousek;M. L. Nguyen;P. Ochner;D. N. Okhmat;I. Papadakis;J. Parks;L. Pei;M. Penny;A. Pizzella;R. Poleski;J. Pott;S. Rafter;H. Rix;J. Runnoe;D. Saylor;J. Schimoia;B. Scott;S. Sergeev;B. Shappee;I. Shivvers;M. Siegel;G. Simonian;A. Siviero;A. Skielboe;G. Somers;M. Spencer;D. Starkey;D. Stevens;H. Sung;J. Tayar;N. Tejos;C. S. Turner;P. Uttley;J. Saders;S. Vaughan;L. Vican;S. Villanueva;C. Villforth;Y. Weiss;J. Woo;H. Yan;S. Young;H. Yuk;W. Zheng;W. Zhu;Y. Zu
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文献类型：
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作者：
P. Williams;A. Pancoast;T. Treu;B. Brewer;B. Peterson;A. Barth;M. Malkan;G. D. Rosa;K. Horne;G. Kriss;N. Arav;M. Bentz;E. Cackett;E. Bontà;M. Dehghanian;C. Done;G. Ferland;C. Grier;J. Kaastra;E. Kara;C. Kochanek;S. Mathur;M. Mehdipour;R. Pogge;D. Proga;M. Vestergaard;T. Waters;S. Adams;M. Anderson;P. Ar'evalo;T. Beatty;V. Bennert;A. Bigley;S. Bisogni;G. Borman;T. Boroson;M. Bottorff;W. Brandt;A. Breeveld;M. Brotherton;J. E. Brown;J. Brown;G. Canalizo;M. Carini;K. Clubb;J. Comerford;E. Corsini;D. Crenshaw;S. Croft;K. Croxall;A. Deason;A. D. Lorenzo-C'aceres;K. Denney;M. Dietrich;R. Edelson;N. Efimova;J. Ely;P. Evans;M. Fausnaugh;A. Filippenko;K. Flatland;O. Fox;E. Gardner;E. Gates;N. Gehrels;S. Geier;J. Gelbord;L. Gonzalez;V. Gorjian;J. Greene;D. Grupe;A. Gupta;P. Hall;C. Henderson;S. Hicks;E. Holmbeck;T. Holoien;T. Hutchison;M. Im;J. Jensen;C. Johnson;M. Joner;J. Jones;S. Kaspi;P. Kelly;J. Kennea;M. Kim;S. Kim;S. Kim;A. King;S. Klimanov;C. Knigge;Y. Krongold;M. W. Lau;J. Lee;D. Leonard;Miao Li;P. Lira;C. Lochhaas;Zhiyuan Ma;E. Manne-Nicholas;F. Macinnis;J. Mauerhan;R. McGurk;I. M. Hardy;C. Montuori;L. Morelli;A. Mosquera;D. Mudd;F. Muller-S'anchez;S. Nazarov;R. Norris;J. Nousek;M. L. Nguyen;P. Ochner;D. N. Okhmat;I. Papadakis;J. Parks;L. Pei;M. Penny;A. Pizzella;R. Poleski;J. Pott;S. Rafter;H. Rix;J. Runnoe;D. Saylor;J. Schimoia;B. Scott;S. Sergeev;B. Shappee;I. Shivvers;M. Siegel;G. Simonian;A. Siviero;A. Skielboe;G. Somers;M. Spencer;D. Starkey;D. Stevens;H. Sung;J. Tayar;N. Tejos;C. S. Turner;P. Uttley;J. Saders;S. Vaughan;L. Vican;S. Villanueva;C. Villforth;Y. Weiss;J. Woo;H. Yan;S. Young;H. Yuk;W. Zheng;W. Zhu;Y. Zu
我们提出了宽线区域（BLR）的几何和动力学建模，用于2014年集中在NGC 5548上的多波长混响映射活动。该数据集包括光学和紫外线的光度和光谱监测，涵盖Hβ，C iv和Lyα宽发射线。我们发现了一个扩展的盘状Hβ BLR，具有近圆形和流出气体轨迹的混合物，而C iv和Lyα BLR的扩展程度要小得多，类似于壳状结构。在BLR中有明显的径向结构，Civ和Lyα发射出现在比Hβ发射更小的半径处。使用这三条线，我们进行了三次独立的黑洞质量测量，所有这些测量都是一致的。将这些结果结合起来，得出log 10（M BH / M）= 7.64 − 0.18 + 0.21的联合推论。我们研究的效果，而不是使用的V波段的紫外连续光曲线的结果，并找到一个大小的差异，是一致的测量的紫外光的时间滞后，但其他结构和运动学参数保持不变，这表明V波段是一个合适的代理电离连续探索的BLR结构和运动学。最后，我们将Hβ结果与2008年活动星系核处于较低光度状态时获得的类似数据模型进行了比较。我们发现，在这段时间内，发射区域的大小增加，但几何形状和黑洞质量保持不变，这证实了BLR运动学适当的计量中心黑洞的引力场。
We present geometric and dynamical modeling of the broad line region (BLR) for the multi-wavelength reverberation mapping campaign focused on NGC 5548 in 2014. The data set includes photometric and spectroscopic monitoring in the optical and ultraviolet, covering the Hβ, C iv, and Lyα broad emission lines. We find an extended disk-like Hβ BLR with a mixture of near-circular and outflowing gas trajectories, while the C iv and Lyα BLRs are much less extended and resemble shell-like structures. There is clear radial structure in the BLR, with C iv and Lyα emission arising at smaller radii than the Hβ emission. Using the three lines, we make three independent black hole mass measurements, all of which are consistent. Combining these results gives a joint inference of log 10 ( M BH / M ⊙ ) = 7.64 − 0.18 + 0.21 . We examine the effect of using the V band instead of the UV continuum light curve on the results and find a size difference that is consistent with the measured UV–optical time lag, but the other structural and kinematic parameters remain unchanged, suggesting that the V band is a suitable proxy for the ionizing continuum when exploring the BLR structure and kinematics. Finally, we compare the Hβ results to similar models of data obtained in 2008 when the active galactic nucleus was at a lower luminosity state. We find that the size of the emitting region increased during this time period, but the geometry and black hole mass remained unchanged, which confirms that the BLR kinematics suitably gauge the gravitational field of the central black hole.