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We report the temporal and spectral results on the INTEGRAL and RXTE 2006-2007 observation campaign of the Atoll source 4U 1728-34 (GX 354-0). The source shows, more than once, spectral evolution as revealed by the hardness intensity diagram. The soft state is well described by a Comptonization with an electron temperature of 3 keV and a high optical depth of 6. In the hard spectral state the emission extends to above 100 keV and it can be described by Comptoniziation (with higher temperature of 10 keV) plus a power law component with Γ of 1.8, which is evidence for non-thermal emission from the source.

In 2005 March 22nd, the INTEGRAL satellite caught a type-I X-ray burst from the unidentified source XMMU J174716.1-281048, serendipitously discovered with XMM-Newton in 2003. Based on the type-I X-ray burst properties, we derived the distance of the object and suggested that the system is undergoing a prolonged accretion episode of many years. We present new data from a Swift/XRT campaign which strengthen this suggestion. AX J1754.2-2754 was an unclassified source reported in the ASCA catalogue of the Galactic Centre survey. INTEGRAL observed a type-I burst from it in 2005, April 16th. Recently, a Swift ToO allowed us to refine the source position and establish its persistent nature., Comment: To be published in AIP Proceedings - Conference 'A Population Explosion: The Nature and Evolution of X-ray Binaries in Diverse Environments', 28 Oct - 2 Nov, St. Petersburg Beach, FL

In this work we propose a method for numerical treatment of integral equations describing scattering of low‐energy electrons with atoms and molecules. The method is based on a combination of R‐matrix approach with the Schwinger‐Lanczos method proposed by the authors. It is shown on the example of scattering of electrons by hydrogen atoms in the static exchange approximation that the method is very fast, economic and very accurate. By using only 64 meshpoints the accuracy of 9 significant figures can be easily obtained.

This paper shortly reviews a number of significant results recently obtained with data from Galactic Gamma‐Ray Binaries with the INTEGRAL/IBIS Gamma‐ray Imager on‐board INTEGRAL. The Observatory, three and half year after the launch has an unprecedented data base of gamma ray observations covering to a large extent the Galaxy plane and with lower exposure a substantial part of the extragalactic sky. The ESA policy for INTEGRAL is to make publicly available all the data collected after one year of proprietary rights, ensuring at this stage of the mission a valuable data base to the scientific community at large. The IBIS high sensitivity and capability to provide at the same time image, spectra and time profiles of all the sources in the wide field of view (∼1000 squared degree) guarantee a powerful tool to deeply observe the Galactic Centre and exploit class oriented studies of the high energy population. Recently the IBIS survey has been uptated and more than 400 sources have been detected in the 20–100 ...