451 citations · 2.3k across the 18 of their papers we have counts for
18 papers
Imprints of Changing Mass and Spin on Black Hole Ringdown
Hengrui Zhu, Frans Pretorius, Sizheng Ma +8
We numerically investigate the imprints of gravitational radiation-reaction driven changes to a black hole's mass and spin on the corresponding ringdown waveform. We do so by compa…
Waveform Modelling for the Laser Interferometer Space Antenna
LISA Consortium Waveform Working Group, Niayesh Afshordi, Sarp Akçay +144
LISA, the Laser Interferometer Space Antenna, will usher in a new era in gravitational-wave astronomy. As the first anticipated space-based gravitational-wave detector, it will exp…
Gravitational wave inference on a numerical-relativity simulation of a black hole merger beyond general relativity
Maria Okounkova, Maximiliano Isi, Katerina Chatziioannou +1
We apply common gravitational wave inference procedures on binary black hole merger waveforms beyond general relativity. We consider dynamical Chern-Simons gravity, a modified theo…
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…
Constraining gravitational wave amplitude birefringence and Chern-Simons gravity with GWTC-2
Maria Okounkova, Will M. Farr, Maximiliano Isi +1
We perform a new test of general relativity (GR) with signals from GWTC-2, the LIGO and Virgo catalog of gravitational wave detections. We search for the presence of amplitude bire…
Revisiting non-linearity in binary black hole mergers
Maria Okounkova
Recently, it has been shown that with the inclusion of overtones, the post-merger gravitational waveform at infinity of a binary black hole system is well-modelled using pure linea…
Numerical relativity simulation of GW150914 in Einstein dilaton Gauss-Bonnet gravity
Maria Okounkova
A present challenge in testing general relativity (GR) with binary black hole gravitational wave detections is the inability to perform model-dependent tests due to the lack of mer…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
Numerical relativity simulation of GW150914 beyond general relativity
Maria Okounkova, Leo C. Stein, Jordan Moxon +2
We produce the first astrophysically-relevant numerical binary black hole gravitational waveform in a higher-curvature theory of gravity beyond general relativity. We simulate a sy…
Stability of rotating black holes in Einstein dilaton Gauss-Bonnet gravity
Maria Okounkova
In order to perform model-dependent tests of general relativity with gravitational wave observations, we must have access to numerical relativity binary black hole waveforms in the…
Numerical binary black hole collisions in dynamical Chern-Simons gravity
Maria Okounkova, Leo C. Stein, Mark A. Scheel +1
We produce the first numerical relativity binary black hole gravitational waveforms in a higher-curvature theory beyond general relativity. In particular, we study head-on collisio…
Astrophysical science metrics for next-generation gravitational-wave detectors
Rana X Adhikari, P Ajith, Yanbei Chen +8
The second generation of gravitational-wave detectors are being built and tuned all over the world. The detection of signals from binary black holes is beginning to fulfill the pro…
The SXS Collaboration catalog of binary black hole simulations
Michael Boyle, Daniel Hemberger, Dante A. B. Iozzo +37
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximum science. Near the tim…
Evolving Metric Perturbations in dynamical Chern-Simons Gravity
Maria Okounkova, Mark A. Scheel, Saul A. Teukolsky
We present a well-posed constraint-preserving scheme for evolving first-order metric perturbations on an arbitrary background with arbitrary source. We use this scheme to evolve th…
Numerical black hole initial data and shadows in dynamical Chern-Simons gravity
Maria Okounkova, Mark A. Scheel, Saul A. Teukolsky
We present a scheme for generating first-order metric perturbation initial data for an arbitrary background and source. We then apply this scheme to derive metric perturbations in…
On choosing the start time of binary black hole ringdown
Swetha Bhagwat, Maria Okounkova, Stefan W. Ballmer +4
The final stage of a binary black hole merger is ringdown, in which the system is described by a Kerr black hole with quasinormal mode perturbations. It is far from straightforward…
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
Maria Okounkova, Leo C. Stein, Mark A. Scheel +1
Testing general relativity in the non-linear, dynamical, strong-field regime of gravity is one of the major goals of gravitational wave astrophysics. Performing precision tests of…
First Results from the DarkSide-50 Dark Matter Experiment at Laboratori Nazionali del Gran Sasso
P. Agnes, T. Alexander, A. Alton +143
We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nucle…