086136
收藏资源简介:
An obscuring wind featuring heavy absorption of the soft X-ray continuum associated with blue-shifted UV broad absorption lines was previously discovered in NGC 5548. The obscurer has been present in our line-of-sight openParLOSclosePar since at least 2011. Outside our LOS comma if photons from the central engine to the narrow-line region are also screened comma X-ray narrow emission lines would be diminished comma given adequate delay time. We propose to observe NGC 5548 with XMM- Newton for 70 ks comma we can verify whether the narrow emission lines in the soft X-ray band are diminished. This helps us to better understand the geometry of the obscurer. With coordinated HST-COS comma we can study the FUV and NUV absorption lines associated with the obscurer along the LOS.



