论文标题
低音XXVIII：近红外数据释放2，主动银核中的高离子和宽线
BASS XXVIII: Near-infrared Data Release 2, High-Ionization and Broad Lines in Active Galactic Nuclei
论文作者
论文摘要
我们介绍了BAT AGN光谱调查（Bass）近红外数据版本2（DR2），对附近的168个研究（$ \ bar z $ = 0.04，$ z $ <0.6）活跃的银河系核（AGN），来自All-Sky Swift Swift Burst Burst burst burs burs tharre阵列X射线望远镜X射线调查，与非常大的TeleScope（VLT）/x-Shoreir（vlt）相关（4. x-shooder-sir）; $μ$ m）。我们发现，使用VLT/X-Shooter观察到的49/109（45％）Seyfert 2和35/58（60％）Seyfert 1星系显示至少一个NIR高离子冠状线（CL，电离电位$χ$> $> 100 eV）。将[Si Vi] $λ$ 1.9640 Cl的排放与DR2 AGN的X射线发射的发射相比，我们发现与光学[O III] $λ$ 5007线（0.71 DEX）相比，散布较低（0.37 dex）。我们没有发现Cl发射与X射线光子指数$γ$之间的任何相关性。我们发现了线条蓝光线的清晰趋势，在几个CL中，电离潜力的增加，例如[Si Vi] $λ$ 1.9640，[SI X] $λ$ 1.4300，[S VIII] $λ$ 0.9915和[S IX] $λ$λ$λ$ 1.2520，表示Cl cl Regart的Radial结构。最后，由于存在明显的灰尘掩盖，我们发现使用宽H $α$在黑洞质量测量中存在强烈的低估偏差。相比之下，广泛的PA $α$和PA $β$发射线与$ m $ - $σ$关系一致。基于组合的DR1和DR2 X-Shooter样品，NIR低音样本现在包括266个AGN，带有REST-FRAME NIR光谱观测值，这是迄今为止组装的最大集合。
We present the BAT AGN Spectroscopic Survey (BASS) Near-infrared Data Release 2 (DR2), a study of 168 nearby ($\bar z$ = 0.04, $z$ < 0.6) active galactic nuclei (AGN) from the all-sky Swift Burst Array Telescope X-ray survey observed with Very Large Telescope (VLT)/X-shooter in the near-infrared (NIR; 0.8 - 2.4 $μ$m). We find that 49/109 (45%) Seyfert 2 and 35/58 (60%) Seyfert 1 galaxies observed with VLT/X-shooter show at least one NIR high-ionization coronal line (CL, ionization potential $χ$ > 100 eV). Comparing the emission of the [Si vi] $λ$1.9640 CL with the X-ray emission for the DR2 AGN, we find a significantly tighter correlation, with a lower scatter (0.37 dex) than for the optical [O iii] $λ$5007 line (0.71 dex). We do not find any correlation between CL emission and the X-ray photon index $Γ$. We find a clear trend of line blueshifts with increasing ionization potential in several CLs, such as [Si vi] $λ$1.9640, [Si x] $λ$1.4300, [S viii] $λ$0.9915, and [S ix] $λ$1.2520, indicating the radial structure of the CL region. Finally, we find a strong underestimation bias in black hole mass measurements of Sy 1.9 using broad H$α$ due to the presence of significant dust obscuration. In contrast, the broad Pa$α$ and Pa$β$ emission lines are in agreement with the $M$-$σ$ relation. Based on the combined DR1 and DR2 X-shooter sample, the NIR BASS sample now comprises 266 AGN with rest-frame NIR spectroscopic observations, the largest set assembled to date.
