The X-ray afterglow of GRB030329 at early and late times
  Thanks to its extraordinary brightness, the X-ray afterglow of GRB030329 could be studied by XMM-Newton up to two months after the prompt Gamma-ray emission.   We present the results of two XMM-Newton observations performed on May 5 and 29, as well as an analysis of the Rossi-XTE data of the early part of the afterglow, discussing in particular the stability of the X-ray spectrum and presenting upper limits on the presence of X-ray emission lines. 
A. Tiengo (1,2), S. Mereghetti (1), G. Ghisellini (3), E. Rossi (4),   G. Ghirlanda (1) and N. Schartel (5) ((1) IASF, Milan...