arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1408.4549astro-ph.GA
收藏

S7:通过ENLR和HII区域探测Seyfert Galerkin的物理

S7 : Probing the physics of Seyfert Galaxies through their ENLR & HII Regions

Michael A. Dopita, Prajval Shastri, Julia Scharwachter, Lisa J. Kewley, Rebecca Davies, Ralph Sutherland, Preeti Kharb, Jessy Jose, Harish Bhatt, S. Ramya, Elis… 展开作者

Michael A. Dopita, Prajval Shastri, Julia Scharwachter, Lisa J. Kewley, Rebecca Davies, Ralph Sutherland, Preeti Kharb, Jessy Jose, Harish Bhatt, S. Ramya, Elise Hampton, Chichuan Jin, Julie Banfield, Ingyin Zaw, Shweta Srivastava, Bethan James

摘要:

在这里,我们提出了来自赛丁泉南部塞弗特光谱快照调查(S7)的第一个结果,其目的是通过使用宽场光谱仪(WiFeS)的积分场光谱学研究~140无线电探测到的z<0.02的南部活动星系的物理。该仪器提供中央38 x 25弧秒的数据立方体。在340- 710 nm波段,以异常高的分辨率获得了目标星系的红外(530- 710 nm)和蓝光(340- 560 nm),分辨率分别为R=7000和R=3000。这些数据提供了扩展窄线区域的形态学、运动学和激发结构,探测与黑洞特征和宿主星系的关系,测量宿主星系丰度梯度和确定HII区域的核丰度。从光电离建模,我们可以确定的形状的活动星系核的电离光谱,发现活动星系核的金属丰度是否不同于从HII地区确定的核丰度,并探测颗粒破坏附近的活动星系核。在这里,我们提出了一些初步的结果和建模的塞弗特星系观察的一部分调查。

英文摘要:

Here we present the first results from the Siding Spring Southern Seyfert Spectroscopic Snapshot Survey (S7) which aims to investigate the physics of ~140 radio-detected southern active Galaxies with z<0.02 through Integral Field Spectroscopy using the Wide Field Spectrograph (WiFeS). This instrument provides data cubes of the central 38 x 25 arc sec. of the target galaxies in the waveband 340-710nm with the unusually high resolution of R=7000 in the red (530-710nm), and R=3000 in the blue (340-560nm). These data provide the morphology, kinematics and the excitation structure of the extended narrow-line region, probe relationships with the black hole characteristics and the host galaxy, measures host galaxy abundance gradients and the determination of nuclear abundances from the HII regions. From photoionisation modelling, we may determine the shape of the ionising spectrum of the AGN, discover whether AGN metallicities differ from nuclear abundances determined from HII regions, and probe grain destruction in the vicinity of the AGN. Here we present some preliminary results and modelling of both Seyfert galaxies observed as part of the survey.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑