A Pile-up Correction Technique for Dispersed Spectra

Details A Pile-up Correction Technique for Dispersed Spectra A Pile-up Correction Technique for Dispersed Spectra

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hrxs.confe..11d&link_type=abstract

High Resolution X-ray Spectroscopy with XMM-Newton and Chandra, Proceedings of the international workshop held at the Mullard Sp

Physics

2

Scientific paper

The effectiveness of the Chandra X-ray Observatory's High Energy Grating Spectrometer (HETGS) for determining the spectrum of a bright X-ray source, or a source with bright lines, can be severely limited by the effects of pile-up in the CCDs. In such cases, the standard technique for flux-correction breaks down, producing false absorption and emission features in the spectra. A new method for flux-correcting grating data affected by photon pile-up will be discussed. The usefulness of the model will be illustrated using the Chandra HETGS observation of 4U 1636-53, a bright X-ray binary system.

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