Context. Classical novae (CNe) have recently been reported to represent the major class of supersoft X-ray sources (SSSs) in the central region of our neighbour...
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PublicationX-ray monitoring of classical novae in the central region of M 31. I. June 2006-March 2007
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PublicationX-ray monitoring of optical novae in M 31 from July 2004 to February 2005
Context: Optical novae have recently been identified as the major class of supersoft X-ray sources in M 31 based on ROSAT and early XMM-Newton and Chandra...
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PublicationX-Ray Nuclear Activity in S4G Barred Galaxies: No Link between Bar Strength and Co-occurrent Supermassive Black Hole Fueling
Stellar bars can lead to gas inflow toward the center of a galaxy and stimulate nuclear star formation. However, there is no compelling evidence on whether they...
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PublicationX-ray spectral properties of active galactic nuclei in the Chandra Deep Field South
We present a detailed X-ray spectral analysis of the sources in the 1Ms catalog of the Chandra Deep Field South (CDFS) taking advantage of optical spectroscopy...
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PublicationX-ray spectral properties of the AGN sample in the northern XMM-XXL field
In this paper we describe and publicly release a catalogue consisting of 8445 point-like X-ray sources detected in the XMM-XXL north survey. For the 2512 AGN...
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PublicationX-ray spectral variability of LINERs selected from the Palomar sample
Context. Variability is a general property of active galactic nuclei (AGN). The way in which these changes occur at X-rays is not yet clearly understood. In the...
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PublicationX-ray spectral variability of seven LINER nuclei with XMM-Newton and Chandra data
Context. One of the most distinctive features in active galactic nuclei (AGN) is the variability of their emission. Variability has been discovered at X-ray, UV...
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PublicationX-ray variability in LINERs
One of the most important features in active galactic nuclei (AGN) is the variability of their emission. Variability has been discovered at X-ray, UV, and radio...
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PublicationX-Ray Variability in LINERs
Active galactic nuclei (AGN) are powered by energetic phenomena which cannot be attributed to stars. LINERs appears to be the low power end of the AGN sequence...