Probing Warm Absorption in the Radio Quiet QSO MR2251-17.8

Physics

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Chandra Proposal Id #03700062

Scientific paper

We propose a 150ks observation of the QSO MR2251-17.8 in order to probe the warm absorption and extended line region reported in this object. High resolution Chandra data will allow us to determine the nature and physical properties of the circum source material and compare them to those seen in lower luminosity AGN. Variable column densities which can be a few orders of magnitude greater than the Galactic column strongly suggests that partially ionized material is intrinsic to the source. We intend to propose for simultaneous HST time if the Chandra observation is approved in order to further investigate the optical/UV spectrum and in particular the C IV feature that has been reported.

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