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M. Sako, S. M. Kahn, F. Paerels (Columbia Astrophysics Laboratory), D. A. Liedahl (Lawrence Livermore National Laboratory)
We present preliminary results of the X-ray spectrum of the Seyfert 2 galaxy Markarian 3 obtained with the High Energy Transmission Grating Spectrometer (HETGS) onboard the Chandra X-ray Observatory. We discuss the excitation mechanisms responsible for the X-ray emission in relation to the nuclear activity of the source.