  We present results of temporal and spectral analyses on four XMM-Newton EPIC
pn observations of IRAS 17020+4544, a narrow-line Seyfert 1 galaxy with
evidence of a radio jet. Analysis of the light curves reveals that this
radio-loud source does not behave like the bulk population of its radio-quiet
counterparts. A trend of spectral hardening with increased flux is found.
Variability is found to increase with energy, though it decreases as the
spectrum hardens. The first 40 ks of the most recent observation behave
uniquely among the epochs, exhibiting a softer spectral state than at any other
time. Possible non-stationarity at low energies is found, with no such effect
present at higher energies, suggesting at least two distinct spectral
components. A reverberation signature is confirmed, with the lag-frequency,
lag-energy, and covariance spectra changing significantly during the soft-state
epoch. The temporal analysis suggests a variable power-law in the presence of a
reflection component, thus motivating such a fit for the 0.3-10 keV EPIC pn
spectra from all epochs. We find an acceptable spectral fit using the
timing-motivated parameters and report the detection of a broad Fe K emission
line, requiring an additional model component beyond the reflection spectrum.
We discuss links between this source and other narrow-line Seyfert 1 sources
that show evidence of jet activity, finding similarities among this currently
very limited sample of interesting objects.
