What is the Physical nature of Kaz 102: an Enigmatic X-ray Hard Qadio Quiet QSO

Details What is the Physical nature of Kaz 102: an Enigmatic X-ray Hard Qadio Quiet QSO What is the Physical nature of Kaz 102: an Enigmatic X-ray Hard Qadio Quiet QSO

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..167m&link_type=abstract

XMM-Newton Proposal ID #04045501

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Kaz 102, Xmm-Newton Proposal 04045501

Scientific paper

We propose to make a detailed broad-band X-ray spectroscopic study of the radio quiet QSO (RQQ) Kaz 102. This RQQ had a power-law spectrum with a photon index Gamma=1 with our ASCA observation. We also found a spectral variability over the timescale of years, from Gamma=2.2 during the ROSAT All Sky Survey to Gamma=1 during the Einstein/ASCA observations. From our ASCA spectra, we couldn't discriminate whether the apparently unusual hard spectrum was caused by warm absorber, Compton reflection, or a simple featureless power-law continuum. High quality spectroscopy with XMM-Newton is essential to unveil the physical nature of the enigmatic hardness and spectral variability of Kaz 102.

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