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Using archival ASCA observations of TT Arietis, X-ray energy spectra andpower spectra of the intensity time series are presented for the first time.The energy spectra are well-fitted by a two continuum plasma emission modelwith temperatures around 1 keV and 10 keV. A coherent feature at about 0.643mHz appeared in the power spectra during the observation.

Low frequency flickering of TT arietis: Hard and soft X-ray emission region