Chandra LETGS observation of the active binary Algol J.-U. Ness, J. H. M. M. Schmitt, V. Burwitz, R. Mewe and P. Predehl A&A, 387 3 (2002) 1032-1046 Published online: 17 May 2002 DOI: 10.1051/0004-6361:20020445