Figure 7.
The l=m neutral f-mode sequences for EOS A. Shown are the ratio of rotational to gravitational energy T/W (upper panel) and the ratio of the critical angular velocity Ωc to the angular velocity at the mass-shedding limit for uniform rotation (lower panel) as a function of gravitational mass. The solid curves are the neutral mode sequences for l=m=2, 3, 4, and 5 (from top to bottom), while the dashed curve in the upper panel corresponds to the mass-shedding limit for uniform rotation. The l=m=2 f-mode becomes CFS-unstable even at 85% of the mass-shedding limit, for 1.4M⊙ models constructed with this EOS. (Figure 2 of Morsink, Stergioulas, and Blattning [230].)