- ... 1999-2004
- Appendices A and B are only available in electronic form at http://www.edpsciences.org
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- ...
- Tables 1 to 3 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/447/245
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- ... important
- This
failure of the simple broken power law is most evident for
observations P50110/53 (2002.05.06:00), P60090/05 (2002.05.06:02),
P60090/07 (2002.05.31:23) and P60090/15 (2002.09.20:16). These data
are characterized by
,
i.e., they are amongst the
softest in our sample and there is a clear thermal component
present. As our main interest in this section is on the behavior of
the harder spectrum, we ignored the data below 5 keV for these two
observations. Above that energy, the spectrum could again be well
described by a broken power law. Additionally, there are two
peculiar observations, P50110/07 (2000.06.02:05) and P50110/10
(2000.07.15:00). In these observations,
(but
not equal!) and when both power law indices and the Fe line
parameters are left free, the uncertainties of both power law
indices are very large, the break energy in these observations
converges to
5.5 keV and the energy of the Gaussian is found
close to 5.5 keV with a width in excess of 1 keV, effectively
smoothing out the effect of the break. Rather than forcing the
power law indices to some (arbitrary) value, we have decided to omit
these two observations from the following analysis, although they
are contained in Table 1.
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- ...diskpn
- The
eqpair model has a toggle that allows one to calculate the
flux of solely the seed photon component.
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- ... important
- PCA spectra were not deadtime corrected as
the spectral shape is not influenced by the deadtime correction and
as good indicators for the PCA deadtime are not available for the
time since the failure of the Xe layer of PCU0, which also changed
the deadtime behavior of that PCU.
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