title: Approaching the Post-Newtonian Regime with Numerical Relativity: A Compact-Object Binary Simulation Spanning 350 Gravitational-Wave Cycles.
abstract: We present the first numerical-relativity simulation of a compact-object binary whose gravitational waveform is long enough to cover the entire frequency band of advanced gravitational-wave detectors, such as LIGO, Virgo, and KAGRA, for mass ratio 7 and total mass as low as 45.5M_{⊙}. We find that effective-one-body models, either uncalibrated or calibrated against substantially shorter numerical-relativity waveforms at smaller mass ratios, reproduce our new waveform remarkably well, with a negligible loss in detection rate due to modeling error. In contrast, post-Newtonian inspiral waveforms and existing calibrated phenomenological inspiral-merger-ringdown waveforms display greater disagreement with our new simulation. The disagreement varies substantially depending on the specific post-Newtonian approximant used.
authors.affiliation: TAPIR, Walter Burke Institute for Theoretical Physics, California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: Béla
authors.initials: B
authors.lastname: Szilágyi
authors.affiliation: TAPIR, Walter Burke Institute for Theoretical Physics, California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Blackman
authors.affiliation: Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, Potsdam-Golm 14476, Germany.|Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
authors.forename: Alessandra
authors.initials: A
authors.lastname: Buonanno
authors.affiliation: Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, Potsdam-Golm 14476, Germany.
authors.forename: Andrea
authors.initials: A
authors.lastname: Taracchini
authors.affiliation: Canadian Institute for Theoretical Astrophysics, 60 St. George Street, University of Toronto, Toronto, Ontario M5S 3H8, Canada.|Canadian Institute for Advanced Research, 180 Dundas Street West, Toronto, Ontario M5G 1Z8, Canada.
authors.forename: Harald P
authors.initials: HP
authors.lastname: Pfeiffer
authors.affiliation: TAPIR, Walter Burke Institute for Theoretical Physics, California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: Mark A
authors.initials: MA
authors.lastname: Scheel
authors.affiliation: Canadian Institute for Theoretical Astrophysics, 60 St. George Street, University of Toronto, Toronto, Ontario M5S 3H8, Canada.|Department of Physics, Princeton University, Jadwin Hall, Princeton, New Jersey 08544, USA.
authors.forename: Tony
authors.initials: T
authors.lastname: Chu
authors.affiliation: Center for Radiophysics and Space Research, Cornell University, Ithaca, New York 14853, USA.
authors.forename: Lawrence E
authors.initials: LE
authors.lastname: Kidder
authors.affiliation: Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
authors.forename: Yi
authors.initials: Y
authors.lastname: Pan