Using γ-ray data from the Fermi Large Area Telescope, various groups have identified a
clear excess emission in the Inner Galaxy, at energies around a few GeV. This excess …

We present a description of the data reduction methods and the derived catalog of more
than 1600 X-ray point sources from the exceptionally deep 2003 January Chandra X-Ray …

The gamma-ray emission in broad-line blazars is generally explained as inverse Compton
(IC) radiation of relativistic electrons in the jet scattering optical-UV photons from the broad …

We have developed a method based on wavelet transforms (WTs) to detect sources in
astronomical images obtained with photon-counting detectors, such as X-ray images. The …

We propose a new detection technique in the plane based on an isotropic wavelet family.
This family is naturally constructed as an extension of the Gaussian–Mexican hat wavelet …

Globular clusters host a variety of lower-luminosity (LX< 10 35 erg s− 1) X-ray sources,
including accreting neutron stars (NSs) and black holes (BHs), millisecond pulsars (MSPs) …

We present the analysis of a deep (167 ks) ROSAT HRI observation of the cD galaxy NGC
1399 in the Fornax Cluster, comparing it with previous work on this galaxy and with recent …

We report our analysis of a Chandra X-ray observation of the rich globular cluster Terzan 5,
in which we detect 50 sources to a limiting 1.0-6 keV X-ray luminosity of 3× 10 31 ergs s-1 …

The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope is an
imaging pair-conversion detector operating in the energy range from 20MeV to> 300 GeV. It …

Context. Flares are powerful events ignited by a sudden release of magnetic energy which
triggers a cascade of interconnected phenomena, each resulting in emission in different …