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Table 1

Best-fit parameters of the models with one and two mekal plasma components, respectively, for the EPIC spectra of QS Tel (orbital mean).

NH,ISM k Tbb NH,intr cover. k Tmekal k Tmekal abund. Fbol(bbody) Fbol(mekal)
[1019   cm-2] [eV] [1022   cm-2] [keV] [keV] [erg cm-2 s-1] [erg cm-2 s-1]

tbnew(bbody+pcfabs(mekal))
1.22
tbnew(bbody+pcfabs(mekal+mekal))
1.06
tbnew(bbody+pcfabs(mekal)+pcfabs(mekal))
1.00 ()*

Notes. Fluxes have been determined via cflux within xspec.

(*)

The integrated flux of the low-temperature mekal component in this fit is highly sensitive even to small changes of temperature, abundance, and absorption, and should, therefore, be interpreted very carefully.

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