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arXiv 0912.0910astro-ph.HEastro-ph.CO
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快速BAT探测的AGN的光学和X射线性质

Optical and X-ray Properties of the Swift BAT-detected AGN

L. Winter, R. Mushotzky, K. Lewis, S. Veilleux, M. Koss, B. Keeney

摘要:

雨燕伽马射线暴卫星仅根据14- 195 keV的辐射通量,就探测到了一个基本上不偏于吸收的局部活动星系核($<z> \approx 0.03$)。在调查的前9个月,153 AGN源被发现。基于XMM-牛顿、钱德拉、朱雀和斯威夫特XRT的分析,已汇编并呈现了0.3- 10 keV波段的X射线特性(Winter等人,2009年)。此外,我们还从SDSS或我们自己在KPNO的观测中汇编了具有中等分辨率光学地基光谱的源的子样本。在这个60个源的样品中,我们使用标准发射线诊断图对源进行了分类,通过测量H $β$的宽发射线获得了宽线源的质量,并测量了这个样品的[OIII] 5007流明光度。基于对内禀吸收特征的连续拟合,我们获得了宿主星系的恒星星族的线索。现在,我们提出的亮点,我们的X射线和光学研究的这个独特的样本的本地活动星系核,包括比较的2- 10 keV和14- 195 keV的X射线光度与[OIII] 5007天体光度和我们的结果对测量的辐射光度的影响。

英文摘要:

The Swift Gamma-Ray Burst satellite has detected a largely unbiased towards absorption sample of local ($<z> \approx 0.03$) AGN, based solely on their 14--195 keV flux. In the first 9 months of the survey, 153 AGN sources were detected. The X-ray properties in the 0.3--10 keV band have been compiled and presented based on analyses with XMM-Newton, Chandra, Suzaku, and the Swift XRT (Winter et al. 2009). Additionally, we have compiled a sub-sample of sources with medium resolution optical ground-based spectra from the SDSS or our own observations at KPNO. In this sample of 60 sources, we have classified the sources using standard emission line diagnostic plots, obtained masses for the broad line sources through measurement of the broad H$β$ emission line, and measured the [OIII] 5007Åluminosity of this sample. Based on continuum fits to the intrinsic absorption features, we have obtained clues about the stellar populations of the host galaxies. We now present the highlights of our X-ray and optical studies of this unique sample of local AGNs, including a comparison of the 2--10 keV and 14--195 keV X-ray luminosities with the [OIII] 5007Åluminosity and the implications of our results towards measurements of bolometric luminosities.

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