High Resolution Spectroscopy of the ADC Source 2S0921-630

Details High Resolution Spectroscopy of the ADC Source 2S0921-630 High Resolution Spectroscopy of the ADC Source 2S0921-630

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..576k&link_type=abstract

Chandra Proposal ID #02400179

Physics

Chandra Proposal Id #02400179

Scientific paper

We propose to observe the high inclination low mass X-ray binary 2S0921-630 in order to test the hypothesis that the residual X-rays seen during eclipse are due to reprocessing and scatttering in an accretion disk corona. By observing the iron K line and lines from medium-Z elements at high resolution using the HETG, we can determine the ionization state and emission measure, and thereby infer the density and size of the corona. Using the ACIS detector we can test for variability in the spectrum during the eclipse, and constrain the geometrical extent of the corona. This source is ideal for such a study owing to its demonstrated strong line emission and its long eclipse.

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