``QPO-FOLDED'' Spectroscopic of the Low-Mass X-Ray Binary and Dipper 4u 1323-62

Physics

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Chandra Proposal Id #04400991

Scientific paper

We will use Chandra's ACIS-S detector in combination with the HETGS to do phase-resolved spectroscopy of the low-mass X-ray binary and dipper 4U 1323-62. Using the 1-Hz QPO that we recently discovered in this source we will construct ``QPO-folded'' light curves to study separately spectra from different QPO-phase intervals. We will correlate the presence/absence of emission and absorption features in the energy spectrum of Chandra with timing properties measured both by Chandra, and (already approved) simultaneous RXTE observations. This should help us determine how timing properties depend on mass accretion rate, and whether mass flows onto the central object through different channels of accretion.

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