2009

Zoom-Whirl Orbits in Black Hole Binaries

Healy, James, Levin, Janna, Shoemaker, Deirdre

Understand

Zoom-whirl behavior has the reputation of being a rare phenomenon.

  • The concern has been that gravitational radiation would drain angular momentum so rapidly that generic orbits would circularize before zoom-whirl behavior could play out, and only rare highly tuned orbits would retain their imprint.
  • Using full numerical relativity, we catch zoom-whirl behavior despite dissipation.
  • The larger the mass ratio, the longer the pair can spend in orbit before merging and therefore the more zooms and whirls seen.

Reading the bibliography…