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Detection of an X-ray periodicity in the Narrow-line Seyfert 1 Galaxy Mrk 766 with XMM-Newton
Th. Boller, R. Keil, J. Truemper +3
We have analyzed the timing properties of the Narrow-line Seyfert 1 galaxy Mrk 766 observed with XMM-Newton during the PV phase. The source intensity changes by a factor of 1.3 ove…
XMM-Newton monitoring of X-ray variability in the quasar PKS 0558-504
M. Gliozzi, W. Brinkmann, P. T. O'Brien +4
We present the temporal analysis of X-ray observations of the radio-loud Narrow-Line Seyfert 1 galaxy (NLS1) PKS 0558-504 obtained during the XMM-Newton Calibration and Performance…
XMM-Newton observation of an unusual iron line in the quasar Markarian 205
J. N. Reeves, M. J. L Turner, K. A. Pounds +6
XMM-Newton observations of the low luminosity, radio-quiet quasar Markarian 205 have revealed a unique iron K emission line profile. In marked contrast to the broad and redshifted…
XMM-Newton Detection of a Comptonized Accretion Disc in the Quasar PKS0558-504
P. T. O'Brien, J. N. Reeves, M. J. L. Turner +6
We present XMM-Newton observations of the bright quasar PKS0558-504. The 0.2-10 keV spectrum is dominated by a large, variable soft X-ray excess. The fastest flux variations imply…
The first XMM-Newton spectrum of a high redshift quasar - PKS 0537-286
J. N. Reeves, M. J. L. Turner, P. J. Bennie +6
We present XMM-Newton observations of the high redshift z=3.104, radio-loud quasar PKS 0537-286. The EPIC CCD cameras provide the highest signal-to-noise spectrum of a high-z quasa…
The complex X-ray absorbers of NGC 3516 observed by BeppoSAX
E. Costantini, F. Nicastro, A. Fruscione +10
In this paper we present the analysis of two broad band (0.1-150 keV) BeppoSAX observations of the Seyfert 1 galaxy NGC 3516. The two observations were taken 4 months apart, on 199…