H-R (top) and Kippenhahn diagrams (bottom) for the 7000 M_⊙ star. The entire evolution of the star is shown in (a) and (b), its pre-MS evolution is shown in (c) and (d), its core H burning phase is in (e) and (f), and core He burning to the end of Si burning is in (g) and (h). The black and white lines in the Kippenhahn diagrams are isomass and isothermal lines, respectively, and the red and green dots along the track on the lower left in (a) are the zero-age main sequence (ZAMS) positions of 2–120 M_⊙ and 1000–10,000 M_⊙ Pop III stars for comparison.