Fig. 6
Additional heat or increased Ṁ? Left panels: dashed curves correspond to 
free with additional heat sources located at 
with an intensity of 1.6 MeV nuc-1. Right panel: same as left panel, but instead of additional heat, an increased accretion mass Ṁ18 = 0.1,0.5,1. For comparison, fixed 
in solid lines. In all cases Tc,8 = 0.32 and Qimp = 3.3 − 4.
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