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[42.01] High-Resolution X-Ray Spectroscopy of Zeta Puppis and Eta Carinae with the RGS on XMM

M. A. Leutenegger (Columbia), M. Audard (PSI), E. Behar (Columbia), A. J. den Boggende (SRON), A. C. Brinkman (SRON), G. Branduardi-Raymont (MSSL), J. Cottam (Columbia), C. Erd (ESTEC), C. Ferringo (SRON), M. Guedel (PSI), J. W. den Herder (SRON), J. S. Kaastra (SRON), S. M. Kahn (Columbia), J. McGee (MSSL), R. Mewe (SRON), F. B. S. Paerels (Columbia), R. Pallavicini (OAPA), J. R. Peterson (Columbia), A. P. Rasmussen (Columbia), G. Raux (Liege), M. Sako (Columbia), T. Tamura (SRON), I. Sakelliou (MSSL), K. Thomsen (SRON), C. de Vries (SRON)

We present high-resolution X-ray spectra of massive stars Zeta Puppis and Eta Carinae obtained with the Reflection Grating Spectrometer (RGS) onboard the XMM/Newton observatory. The spectrum of Zeta Puppis has many emission lines, including bright, broad hydrogenic and helium-like lines from oxygen and nitrogen. Analysis of these lines indicates a plasma density of at least 10¹⁰ \rm{cm}^-3. The spectrum of Eta Carinae is dominated by the bright hydrogenic nitrogen line. We will present the analysis of the spectra and discuss implications.

The author(s) of this abstract have provided an email address for comments about the abstract: maurice@astro.columbia.edu