Exploring Accretion Disks: the Line-Rich Spectra of X-Ray Binary Dippers

Details Exploring Accretion Disks: the Line-Rich Spectra of X-Ray Binary Dippers Exploring Accretion Disks: the Line-Rich Spectra of X-Ray Binary Dippers

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1189j&link_type=abstract

Chandra Proposal ID #04400983

Computer Science

Chandra Proposal Id #04400983

Scientific paper

We propose to obtain HETG spectra for two low-mass X-ray binary (LMXB) dippers, which likely exhibit prominent emission lines. Observations during the dip (or absorbed) phases, are equivalent to taking a "disk-coronagraph", which allows us to probe any circumsource structure. Using high-resolution spectroscopy, we can determine element abundance ratios, density, temperature, and measure emission-line profiles. With 4U1254-69 and 4U1323-619, we will complete the observed sample of bright, high-inclination LMXB, which will advance our understanding of their accretion disks.

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