Analytical effective one-body formalism for extreme-mass-ratio inspirals with eccentric orbits

Chen Zhang,Wen-Biao Han,Shu-Cheng Yang

Figure 4. The frequency shifts $\tfrac{{\rm{\Delta }}{\omega }_{r}}{\nu {\omega }_{r0}}$ and $\tfrac{{\rm{\Delta }}{\omega }_{\phi }}{\nu {\omega }_{\phi 0}}$ versus the Kerr parameter a for various p, e with ν = 10−4. When a becomes smaller, the frequency shift can become larger, since the orbit approaches the ISBO.