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Table 3

Radii and luminosities of the central blackbody emitter.

R (km) LBB (1030 W) Teff (eV)

basic no H no H basic no H no H
no He no He

A.1 21 000 7000 5600 440 47 31 91
A.2 10 000 4800 4100 57 13 9 81
A.3 17 600 3780 2790 849 39.2 21.4 121
B 1900 1500 1300 3.8 2.4 2.2 95

Notes. The values refer to the fits to the four spectra, for the basic model, and for variant models in which the hydrogen content, or the hydrogen and helium content of the highly ionized absorption shells are set to zero. Note that the parameters for the basic model are correct only for a highly non-symmetric case; in the spherically symmetric case the correct values for the basic model are those listed above for the no H, no He case.

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