Highly eccentric inspirals into a black hole

Nov 4, 2015
18 pages
Published in:
  • Phys.Rev.D 93 (2016) 6, 064024
  • Published: Mar 9, 2016
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Abstract: (APS)
We model the inspiral of a compact stellar-mass object into a massive nonrotating black hole including all dissipative and conservative first-order-in-the-mass-ratio effects on the orbital motion. The techniques we develop allow inspirals with initial eccentricities as high as e∼0.8 and initial separations as large as p∼50 to be evolved through many thousands of orbits up to the onset of the plunge into the black hole. The inspiral is computed using an osculating elements scheme driven by a hybridized self-force model, which combines Lorenz-gauge self-force results with highly accurate flux data from a Regge-Wheeler-Zerilli code. The high accuracy of our hybrid self-force model allows the orbital phase of the inspirals to be tracked to within ∼0.1 radians or better. The difference between self-force models and inspirals computed in the radiative approximation is quantified.
Note:
  • Updated to reflect published version