In this work we present IMRPhenomT, a time domain phenomenological model for the dominant (l=2, |m|=2) modes of coalescing black hole binary systems and its precessing extension IMRPhenomTP to describe general precessing systems within the "twisting-up" approximation.
Publications
Computationally efficient models for the dominant and subdominant harmonic modes of precessing binary black holes
We present IMRPhenomXPHM, a phenomenological frequency-domain model for the gravitational-wave signal emitted by quasicircular precessing binary black holes, which incorporates multipoles beyond the dominant quadrupole in the precessing frame.
A detailed analysis of GW190521 with phenomenological waveform models
In this paper we present an extensive analysis of the GW190521 gravitational wave event with the current (fourth) generation of phenomenological waveform models for binary black hole coalescences. GW190521 stands out from other events since only a few wave cycles are observable.
Adding harmonics to the interpretation of the black hole mergers of GWTC-1
We consider the ten confidently detected gravitational wave signals in the GWTC-1 catalog which are consistent with mergers of binary black hole systems, and re-analyze them with waveform models that contain subdominant spherical harmonic modes. This analysis is based on the current (fourth) generation of the IMRPhenom family of phenomenological waveform models, which consists of the IMRPhenomX frequency-domain models and the IMRPhenomT time-domain models.
Towards the routine use of subdominant harmonics in gravitational-wave inference: Reanalysis of GW190412 with generation X waveform models
We reanalyze the gravitational-wave event GW190412 with state-of-the-art phenomenological waveform models. This event, which has been associated with a black hole merger, is interesting due to the significant contribution from subdominant harmonics.
Accelerating the evaluation of inspiral–merger–ringdown waveforms with adapted grids
This paper presents an algorithm to accelerate the evaluation of inspiral-merger-ringdown waveform models for gravitational wave data analysis.
Multimode frequency-domain model for the gravitational wave signal from nonprecessing black-hole binaries
We present the frequency domain phenomenological waveform model for the inspiral, merger, and ringdown of quasicircular nonprecessing black hole binaries.
Setting the cornerstone for a family of models for gravitational waves from compact binaries: The dominant harmonic for nonprecessing quasicircular black holes
In this paper we present IMRPhenomXAS, a thorough overhaul of the IMRPhenomD [S. Husa et al., Phys. Rev. D 93, 044006 (2016); S. Khan et al., Phys. Rev. D 93, 044007 (2016)] waveform model, which describes the dominant (l=2, |m|=2) spherical harmonic mode of nonprecessing coalescing black holes in terms of piecewise closed form expressions in the frequency domain.
First survey of spinning eccentric black hole mergers: Numerical relativity simulations, hybrid waveforms, and parameter estimation
We analyze a new numerical relativity dataset of spinning but nonprecessing binary black holes on eccentric orbits, with eccentricities from approximately 0.1 to 0.5, with dimensionless spins up to 0.75 included at mass ratios q=(1, 2), and further nonspinning binaries at mass ratios q=(1.5, 3, 4).
First Higher-Multipole Model of Gravitational Waves from Spinning and Coalescing Black-Hole Binaries
Gravitational-wave observations of binary black holes currently rely on theoretical models that predict the dominant multipoles (l,m) of the radiation during inspiral, merger and ringdown. We introduce a simple method to include the subdominant multipoles to binary black hole gravitational waveforms, given a frequency-domain model for the dominant multipoles.