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arXiv 1910.02412astro-ph.GA
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首尔国立大学AGN监测项目。II。两个活动星系核的BLR大小和黑洞质量

The Seoul National University AGN monitoring project. II. BLR size and black hole mass of two AGNs

Suvendu Rakshit, Jong-Hak Woo, Elena Gallo, Edmund Hodges-Kluck, Jaejin Shin, Yiseul Jeon, Hyun-Jin Bae, Vivienne Baldassare, Hojin Cho, Wanjin Cho, Adi Foord, … 展开作者

Suvendu Rakshit, Jong-Hak Woo, Elena Gallo, Edmund Hodges-Kluck, Jaejin Shin, Yiseul Jeon, Hyun-Jin Bae, Vivienne Baldassare, Hojin Cho, Wanjin Cho, Adi Foord, Daeun Kang, Wonseok Kang, Marios Karouzos, Minjin Kim, Taewoo Kim, Huynh Anh N. Le, Daeseong Park, Songyoun Park, Donghoon Son, Hyun-il Sung, Vardha N. Bennert, Matthew A. Malkan

摘要:

活动星系核(AGN)的宽线区(BLR)的大小和单色连续发光度在5100度之间的相关性,允许黑洞质量估计的基础上单历元光谱。然而,相关性的有效性还有待明确的高光度活动星系核测试。我们提出了第一个混响映射结果的首尔国立大学活动星系核监测计划(SAMP),这是专为专注于发光活动星系核探测高端的大小-光度关系。本文报道了两个活动星系核(2 MASS J10261389+5237510和SDSS J161911.24+501109.2)的光变曲线测量结果,测量周期为$\sim$ 1000天,平均周期为$\sim$ 10天和$\sim$ 20天,分别用于光度测量和光谱测量。基于互相关分析和H $β$线宽测量,我们确定了2 MASS J1026和SDSS J1619的H $β$滞后为$41.8^{+4.9}_{-6.0}$和$52.6^{+17.6}_{-14.7}$天,黑洞质量分别为$3.65^{+0.49}_{-0.57} \times 10^7 M_{\odot}$和$23.02^{+7.81}_{-6.56} \times 10^7 M_{\odot}$.

英文摘要:

Active galactic nuclei (AGNs) show a correlation between the size of the broad line region (BLR) and the monochromatic continuum luminosity at 5100 Å, allowing black hole mass estimation based on single-epoch spectra. However, the validity of the correlation is yet to be clearly tested for high-luminosity AGNs. We present the first reverberation-mapping results of the Seoul National University AGN monitoring program (SAMP), which is designed to focus on luminous AGNs for probing the high end of the size-luminosity relation. We report time lag measurements of two AGNs, namely, 2MASS J10261389+5237510 and SDSS J161911.24+501109.2, using the light curves obtained over a $\sim$1000 day period with an average cadence of $\sim$10 and $\sim$20 days, respectively for photometry and spectroscopy monitoring. Based on a cross-correlation analysis and H$β$ line width measurements, we determine the H$β$ lag as $41.8^{+4.9}_{-6.0}$ and $52.6^{+17.6}_{-14.7}$ days in the observed-frame, and black hole mass as $3.65^{+0.49}_{-0.57} \times 10^7 M_{\odot}$ and $23.02^{+7.81}_{-6.56} \times 10^7 M_{\odot}$, respectively for 2MASS J1026 and SDSS J1619.

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