From ROSAT to Chandra: X-ray Spectroscopy of TW Hya Association Stars Kastner, J. H. ; Huenemoerder, D. P. ; Schulz, N. S. ; Canizares, C. R. ; Crigger, L. ; Weintraub, D. A. Abstract Publication: Young Stars Near Earth: Progress and Prospects Pub Date: 2001 Bibcode: 2001ASPC..244..159K