HETG Spectroscopy of Bright Intermedaite Polars

Details HETG Spectroscopy of Bright Intermedaite Polars HETG Spectroscopy of Bright Intermedaite Polars

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..114m&link_type=abstract

Chandra Proposal ID #01300628

Physics

Chandra Proposal Id #01300628

Scientific paper

Intermediate Polars (IPs) are the hard X-ray brightest subclass of magnetic Cataclysmic Variables. Previous X-ray observations, notably those with ASCA, have established the complex nature of their spectra: multi-temperature plasma and complex absorber are both required. Moreover, one recent study suggests that the Fe lines are Compton broadened in at least some systems. We propose HETG observations of 2 bright IPs, V1223 Sgr and AO Psc, to search for K-alpha lines of Ne, Mg, Si, S, Ar and Ca; to measure the physical widths of any lines we do detect; to search for a direct evidence for an ionized absorber; and to obtain an improved characterization of the spin modulation.

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