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

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

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.8802m&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #88.02; Bulletin of the American Astronomical Society, Vol. 32, p.1561

Astronomy and Astrophysics

Astronomy

1

Scientific paper

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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