270 citations · 2.9k across the 71 of their papers we have counts for
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CAIXA: a catalogue of AGN in the XMM-Newton archive III. Excess Variance Analysis
Gabriele Ponti, Iossif Papadakis, Stefano Bianchi +5
We report on the results of the first XMM systematic "excess variance" study of all the radio quiet, X-ray un-obscured AGN. The entire sample consist of 161 sources observed by XMM…
Suzaku broad-band observations of the Seyfert 1 galaxies Mrk 509 and Mrk 841
M. Cerruti, G. Ponti, C. Boisson +5
We report an analysis and modelling of new Suzaku observations of the Seyfert 1 galaxies Mrk509 and Mrk841, taken between April and November 2006,for Mrk509,and between January and…
PG 1211+143: probing high frequency lags in a high mass AGN
B. De Marco, G. Ponti, P. Uttley +4
We present the timing analysis of the four archived XMM-Newton observations of PG 1211+143. The source is well-known for its spectral complexity, comprising a strong soft-excess an…
Multiwavelength campaign on Mrk 509 VII. Relative abundances of the warm absorber
K. C. Steenbrugge, J. S. Kaastra, R. G. Detmers +14
Context. The study of abundances in the nucleus of active galaxies allows us to investigate the evolution of abundance by comparing local and higher redshift galaxies. However, the…
Multiwavelength campaign on Mrk 509. VI. HST/COS observations of the far-ultraviolet spectrum
G. A. Kriss, N. Arav, J. S. Kaastra +15
We present medium resolution (R~20,000) HST/COS ultraviolet spectra covering 1155-1760 A of the Seyfert 1 Mrk 509 obtained simultaneously with a Chandra/LETGS spectrum as part of a…
Multiwavelength campaign on Mrk 509. V. Chandra-LETGS observation of the ionized absorber
J. Ebrero, G. A. Kriss, J. S. Kaastra +11
We present here the results of a 180 ks Chandra-LETGS observation as part of a large multi-wavelength campaign on Mrk 509. We study the warm absorber in Mrk 509 and use the data fr…