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Discovery of a broad O VIII Ly alpha line in the ultra-compact X-ray binary 4U 1543-624
accretion accretion discs binaries-X-rays individual 4U 1543-624
2010/11/15
We report the discovery of a broad emission feature at W64; 0.7 keV in the spectra of the ultracompact X-ray binary 4U 1543-624, obtained with the high-resolution spectrographs of the
XMM-Newton a...