论文标题
探索CIV流出运动学与升华 - 温度灰尘之间的联系
Exploring the link between C IV outflow kinematics and sublimation-temperature dust in quasars
论文作者
论文摘要
使用来自SDSS，UKIDSS和WISE的数据，我们调查了$ \ simeq $ 5000精心选择的发光（$ l_ {bol} \ simeq 10^{47} $）$ \ simeq $ 5000 $ \ simeq $ 5000的红外排放的属性。 $ \ simeq $ 2 $μ$ m的排放量对应于中央连续源围绕的升华区中最热（t> 1200k）灰尘的发射，观察到与C IV $λ$ 1550发射线的蓝光相关。因此，我们发现具有更强的核流出特征的物体往往具有较大的升华 - 温度粉尘的覆盖部分。在控制观察到的流出强度时，覆盖量的热灰尘覆盖分数在我们的样品中不会显着变化，这是光度，黑洞质量或爱丁顿分数的函数。因此，热尘与C IV线蓝光之间的相关性，以及热尘和其他参数之间的相关性，因此提供了宽发射线区域的性质与类星体中红外发射的灰尘区域之间联系的证据。
Using data from SDSS, UKIDSS and WISE, we investigate the properties of the high-frequency cutoff to the infrared emission in $\simeq$5000 carefully selected luminous ($L_{bol} \simeq 10^{47}$) type 1 quasars. The strength of $\simeq$2 $μ$m emission, corresponding to emission from the hottest (T>1200K) dust in the sublimation zone surrounding the central continuum source, is observed to correlate with the blueshift of the C IV $λ$1550 emission line. We therefore find that objects with stronger signatures of nuclear outflows tend to have a larger covering fraction of sublimation-temperature dust. When controlling for the observed outflow strength, the hot dust covering fraction does not vary significantly across our sample as a function of luminosity, black hole mass or Eddington fraction. The correlation between the hot dust and the C IV line blueshifts, together with the lack of correlation between the hot dust and other parameters, therefore provides evidence of a link between the properties of the broad emission line region and the infrared-emitting dusty regions in quasars.
