a High Resolution X-Ray Spectrum of the Nucleus of Centaurus a

Physics

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Chandra Proposal Id #02700083

Scientific paper

The X-ray spectrum of the nucleus is well described by a heavily absorbed (N_H=10(23) ) power law (photon index 1.9) with a soft excess below 2 keV and Fe K emission. Previous observations of the nucleus have not had the spatial resolution to clearly separate the nuclear emission from that of the jet and diffuse emission from the hot ISM, nor have they had the resolution to resolve the spectral lines from the continuum. The purpose of this observation is to quantify the energy, shape, intensity, and variability of the emission lines, absorption edges and the continuum to constrain the nuclear environment.

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