2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- A. Zezas3 profiles106 · h 46
- P. Reig2 profiles88 · h 30
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- E. Stratakis47 · h 63
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- M. Kafesaki33 · h 54
- University of CreteGR1.1k papers
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- Max Planck Institute for Extraterrestrial PhysicsDE89 papers
- Aalto UniversityFI84 papers
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9 papers · 2 filters
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…
Hard X-ray spectral variability of the brightest Seyfert AGN in the Swift/BAT sample
M. D. Caballero-Garcia, I. E. Papadakis, F. Nicastro +1
Aims: We used data from the 58 month long, continuous Swift/Burst Alert Telescope (BAT) observations of the five brightest Seyfert galaxies at hard X-rays, to study their flux and…
Multi-frequency observations of SWIFT J1626.6-5156
P. Reig, E. Nespoli, J. Fabregat +1
SWIFT J1626.6-5156 is an X-ray pulsar that was discovered in December 2005 during an X-ray outburst. Although the X-ray data suggest that the system is a high-mass X-ray binary, ve…
The deep XMM-Newton Survey of M 31
H. Stiele, W. Pietsch, F. Haberl +5
Aims. M 31 has been completely imaged for the first time obtaining a luminosity lower limit ~10^35 erg s-1 in the 0.2-4.5 keV band. Our XMM-Newton EPIC survey combines archival obs…
Evidence for a change in the X-ray radiation mechanism in the hard state of Galactic black holes
M. A. Sobolewska, I. E. Papadakis, C. Done +1
We present results on spectral variability of two Galactic black hole X-ray binaries, GRO J1655-40 and GX 339-4, in the hard state. We confirm a transition in behaviour of the phot…
Luminosity Functions and Point Source Properties from Multiple Chandra Observations of M81
P. H. Sell, D. Pooley, A. Zezas +3
We present an analysis of 15 Chandra observations of the nearby spiral galaxy M81 taken over the course of six weeks in May--July 2005. Each observation reaches a sensitivity of ~1…
Formation and destruction of jets in X-ray binaries
N. D. Kylafis, I. Contopoulos, D. Kazanas +1
Neutron-star and black-hole X-ray binaries (XRBs) exhibit radio jets, whose properties depend on the X-ray spectral state and history of the source. In particular, black-hole XRBs…
IKT 16: A Composite SNR in the SMC
R. A. Owen, M. D. Filipovic, J. Ballet +11
Aims: IKT 16 is an X-ray and radio-faint supernova remnant (SNR) in the Small Magellanic Cloud (SMC). A previous X-ray study of this SNR found a hard X-ray source near its centre.…
Be/X-ray binaries
Pablo Reig
The purpose of this work is to review the observational properties of Be/X-ray binaries. The open questions in Be/X-ray binaries include those related to the Be star companion, tha…