AAS 197, January 2001
Session 88. HEAD I: High Resolution Views of Compact Objects
Special Session Oral, Wednesday, January 10, 2001, 10:30am-12:00noon, Golden Ballroom

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[88.02] High-Resolution Chandra and XMM-Newton X-ray Spectroscopy of the Intermediate Polar EX Hydrae

C. W. Mauche (LLNL)

The intermediate polar EX Hydrae was the subject of an extensive series of satellite and ground-based observations in May-July 2000. I present results from the EUV through hard X-ray components of this campaign, with emphasis on the high-resolution X-ray spectra from the Chandra HETG and XMM-Newton RGS spectrometers. The X-ray light curves show the 67 min spin phase of the white dwarf, and the spectra show a weak continuum with strong narrow emission lines of H- and He-like C, N, O, Ne, Mg, Si, S, Ar, and Fe and L-shell Fe (most prominently Fe XVII-XIX and Fe XXIII-XXIV). Line strengths are used to constrain the emission measure and density distribution of the emitting plasma, thereby constraining models of the accretion column.


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