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33 papers · 1 filter
A Neutral Atom and a Charged Wire: From Elastic scattering to Absorption
M. Bawin, S. A. Coon
We solve the problem of a neutral atom interacting with a charged wire, giving rise to an attractive 1/r^2 potential in two dimensions. We show how a suitable average over all poss…
Confirmation of the existence of coherent orientations of quasar polarization vectors on cosmological scales
D. Hutsemekers, H. Lamy
In order to verify the existence of coherent orientations of quasars polarization vectors on very large scales, we have obtained new polarization measurements for a sample of quasa…
Band-by-band decomposition of the Born effective charges
Ph. Ghosez, X. Gonze
The Born effective charge, Z*, that describes the polarization created by collective atomic displacements, can be computed from first-principles following different techniques. We…
The XMM-Newton Optical/UV Monitor Telescope
K. O. Mason, A. A. Breeveld, R. Much +16
The XMM-OM instrument extends the spectral coverage of the XMM-Newton observatory into the ultraviolet and optical range. It provides imaging and time-resolved data on targets simu…
High resolution X-Ray spectroscopy of Zeta Puppis with the XMM-Newton Reflection Grating Spectrometer
S. M. Kahn, M. A. Leutenegger, J. Cottam +5
We present the first high resolution X-ray spectrum of the bright O4Ief supergiant star Zeta Puppis, obtained with the Reflection Grating Spectrometer on-board XMM-Newton. The spec…
The z=0.0912 and z=0.2212 Damped Lyman Alpha Galaxies Along the Sight-Line Toward the Quasar OI 363
D. A. Turnshek, S. Rao, D. Nestor +4
New optical and infrared observations along the sight-line toward the quasar OI 363 (0738+313) are presented and discussed. Excluding systems which lack confirming UV spectroscopic…