extreme mass ratio inspiral (EMRI)
forupicé bâ vâbar-e ostom-e jerm
Fr.: orbite plongeante d'un trou noir binaire, au rapport de masse extrême
A compact stellar remnant (e.g., a → white dwarf, → neutron star, or → black hole) that undergoes → inspiral into a much more massive object (→ supermassive black hole found → galactic centers). EMRIs are potential sources of low-frequency → gravitational waves. Predictions of the EMRI event rates span a wide range, from ~ 10-9 to 10-6 yr-1 per galaxy (Merritt et al. 2011, Physical Review D 84, 044024). See also → resonant relaxation.