B =3x1013G
Teff = 75 eV
Left : T=cost
Right
: T(q) as given by
Greenstein & Hartke
1983
Dashed line: bb at Teff
Dashed-dotted
line: best
fitting bb in the 0.1-2
keV range
Solid
lines: spectra. Upper
curve: wp
Lower curve: 2.5 wp
B =5x1013G
Turolla, Zane & Drake, Apj subm.