- ... absorption
^{}
- Tables 2-8 and 10 are only available in electronic form at http://www.edpsciences.org
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- ... two
^{}
- Both
1425+267 and 1543+489 have been observed by
*XMM-Newton* but there were
no public data.
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- ...
^{}
- The ionization parameter
is defined as
,
where
*L* is the isotropic luminosity of the
ionizing source in the interval 5 eV to 300 keV, *n* is the number
density of the warm plasma and *r* is the distance between the latter
and the central source.
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- ...
limit
^{}
- The five high-
*z* QSOs: 1115+080, 1206+459, 1407+265,
1630+377, 2302+029 as well as 2212+139 were excluded from the last three
correlation analysis since there are no optical data available in the
literature. For the calculation of
we applied the Eq. (1) reported
in P04.
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- ... of 40 QSOs
^{}
- For objects obscured by heavy absorption as 1411+442
and 2214+139, however, the presence of the additional soft power law
component can be more properly explained in terms of scattered
emission from the absorbing medium and/or partial covering than a
truly soft excess "emission''.
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- ... gas
^{}
- There
is also a strong suggestion of the presence of a warm absorber
in 1411+442 (e.g. Sect. 3.4; Brinkmann et al. 2004a).
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