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INTEGRAL surveys
Walter, R.; Kretschmar, P.; Paizis, A. +2 more
The XMM large-scale structure survey: scientific motivation and first cluster candidates
Valtchanov, I.; Pierre, M.
The XMM-Newton Large-Scale Structure Survey (XMM-LSS) will ultimately cover a region of 8x8 square degrees and with the unprecedented sensitivity of XMM will provide a unique dataset to study the evolution of the cosmic network as traced by clusters and AGNs/QSOs. We discuss the scientific goals and show some first observations of candidate cluste…
Variability of the He I λ5876 Å line in early type chemically peculiar stars. II
Leone, F.; Catanzaro, G.
To try to understand the behavior of helium variability in Chemically Peculiar stars, we continued our on-going observational campaign started by \cite{catanzaro99}. In this paper we present a new set of time resolved spectroscopic observations of the He I 5876 Å line for a sample of 10 stars in the spectral range B3 - A2 and characterized by diff…
Erratum: XMM-Newton view of the Hubble Deep Field-North and Groth-Westphal Strip regions
Griffiths, R. E.; Miyaji, T.; Lumb, D. +2 more
In the paper, ``XMM-Newton view of the Hubble Deep Field-North and Groth-Westphal strip regions'' by Miyaji et al. (2003), we found that one of the data points on Fig. ref{fig:lnls} was incorrectly plotted. The corrected figure is shown below.
X-ray sources in globular clusters
Webb, N. A.; Barret, D.; Gendre, B.
We present XMM-Newton observations of 4 globular clusters (GCs): M 22 (NGC 6656); omega Centauri (NGC 5139) M 13 (NGC 6205); and NGC 6366. We provide evidence for close binaries in the centre of GCs, including an accreting neutron star and cataclysmic variables. We present results of a colour-colour study of the sources in the FOV and we make some…
Does the ion cyclotron exist in the inner corona?
Raouafi, N. -E.
The present work is about the interpretation of the linear polarization of the O {vi} D_2 (lambda1032 ) coronal line observed by SUMER/SoHO. We take into account the effect of the Doppler redistribution due to the scattering ions motion. We consider the cases of isotropic and anisotropic velocity field distributions. The latter can be interpreted …