X-ray Spectroscopy of the Scattered Emission in NGC 1068 |
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Authors: | K Iwasawa AC Fabian G Matt |
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Institution: | (1) Institute of Astronomy, Madingley Road, Cambridge, UK;(2) Dipartimento di Fisica, Universita di Roma III, Italy |
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Abstract: | We discuss the iron K line complex in NGC 1068. The line complex basically consists of three components, as previously reported.
A new analysis of the ASCA data shows that cold reflection appears to dominate the observed X-ray emission above 4 keV based
on the detection of ‘Compton shoulder’, a weak red wing of the 6.4 keV fluorescence iron K line, and a very flat continuum.
The other two weaker lines at higher energies can be identified with FeXXV and FeXXVI and suggest an highly ionized X-ray
mirror as well, although the line energies are systematically lower than those expected from the resonant lines, consistent
with a redshift by 1.5%.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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