Chandra-LETGS X-ray observation of α Centauri: A nearby (G2V + K1V) binary systemA. J. J. Raassen, J.-U. Ness, R. Mewe, R. L. J. van der Meer, V. Burwitz and J. S. KaastraA&A, 400 2 (2003) 671-678DOI: https://doi.org/10.1051/0004-6361:20021899