The first spectroscopic IR reverberation programme on Mrk 509
J. A. J. Mitchell, M. J. Ward, D. Kynoch, J. V. Hernández Santisteban, K. Horne, J. -U. Pott, J. Esser, P. Mercatoris, C. Packham, G. J. Ferland, A. Lawrence, T… 展开作者
J. A. J. Mitchell, M. J. Ward, D. Kynoch, J. V. Hernández Santisteban, K. Horne, J. -U. Pott, J. Esser, P. Mercatoris, C. Packham, G. J. Ferland, A. Lawrence, T. Fischer, A. J. Barth, C. Villforth, H. Winkler
备注：
16 pages, 12 figures
发表信息：
Monthly Notices of the Royal Astronomical Society, Volume 529, Issue 4, April 2024, Pages 4824 - 4839
Near IR spectroscopic reverberation of Active Galactic Nuclei (AGN) potentially allows the infrared (IR) broad line region (BLR) to be reverberated alongside the disc and dust continua, while the spectra can also reveal details of dust astro-chemistry. Here, we describe results of a short pilot study (17 near-IR spectra over a 183 d period) for Mrk 509. The spectra give a luminosity-weighted dust radius of $\langle R_{\mathrm{d,lum}} \rangle = 186 \pm 4$ light-days for blackbody (large grain dust), consistent with previous (photometric) reverberation campaigns, whereas carbon and silicate dust give much larger radii. We develop a method of calibrating spectral data in objects where the narrow lines are extended beyond the slit width. We demonstrate this by showing our resultant photometric band light curves are consistent with previous results, with a hot dust lag at >40 d in the K band, clearly different from the accretion disc response at <20 d in the z band. We place this limit of 40 d by demonstrating clearly that the modest variability that we do detect in the H and K band does not reverberate on time-scales of less than 40 d. We also extract the Pa$β$ line light curve, and find a lag which is consistent with the optical BLR H$β$ line of $\sim$70-90 d. This is important as direct imaging of the near-IR BLR is now possible in a few objects, so we need to understand its relation to the better studied optical BLR.
Monitoring AGNs with Hβ Asymmetry. II. Reverberation Mapping of Three Seyfert Galaxies Historically Displaying Hβ Profiles with Changing Asymmetry: Mrk 79, NGC 3227, and Mrk 841
The 2MIG isolated AGNs. 3. Optical--IR variability and dust reverberation in the NLSy1 galaxies Mrk~42 and Mrk~493
Main Astronomical Observatory of the NAS of Ukraine（乌克兰国家科学院主天文台）；International Center for Astronomical, Medical and Ecological Research (ICAMER)（国际天文、医学和生态研究中心）；Instituto de Astrofísica de Canarias（加那利群岛天体物理研究所）；Universidad de la Laguna（拉古纳大学）
Spectroastrometry and Reverberation Mapping (SARM) of Active Galactic Nuclei. I. The H$β$ Broad-line Region Structure and Black Hole Mass of Five Quasars
The 2MIG isolated AGNs -- 4. Linking hot-dust reverberation to spectroscopically predicted BLR scales in IC~5287 and Mrk~845
Main Astronomical Observatory of the NAS of Ukraine（乌克兰国家科学院主天文台）；International Centre for Astronomical, Medical and Ecological Research (ICAMER)（国际天体医学与生态研究中心）；Instituto de Astrofísica de Canarias（加那利群岛天体物理研究所）；Departamento de Astrofísica, Universidad de la Laguna（拉古纳大学天体物理学系）
Active Galactic Nuclei with Ultra-fast Outflows Monitoring Project: The Broad-line Region of Mrk 79 as a Disk Wind
我们开发了一个光谱监测项目，以研究具有超快外流（UFO）的活动星系核（AGN）中宽线区（BLR）的运动学。Mrk~79是一个射电宁静活动星系核，有不明飞行物（UFO）和暖吸收体，已经被三次混响测绘（RM）活动监测到，但它的BLR运动学还不清楚。本文报道了丽江2.4米望远镜对Mrk~79进行的一次新的RM活动的结果。Mrk~79似乎正走出微弱的状态，平均流量比历史记录更接近一个星等。我们成功地测量了H $β~\lambda4861$、H $γ~\lambda4340$、He II $\lambda4686$和He I $\lambda5876$等宽谱线相对于活动星系核连续谱的滞后。利用H-$β~\lambda4861$宽谱线测量了$M_{\bullet}=5.13^{+1.57}_{-1.55}\times10^{7}M_{\odot}$的黑洞质量，估算了${\dot{M}_{\bullet}}=(0.05\pm0.02)~L_{\rm Edd}~c^{-2}$的吸积率，表明Mrk~79是一个亚爱丁顿吸积体.我们发现Mrk~（79）偏离了经典的半径$-$光度关系。He Ⅱ $\lambda4686$宽谱线的边缘蓝移表明有高电离气体流出。宽H $γ~\lambda4340$、H $β~\lambda4861$和He I $\lambda5876$谱线的速度分辨滞后分布显示出相似的特征，…
Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VIII. Structure of the Broad-Line Region and Mass of the Central Black Hole in Mrk 142
