359 citations · 4.5k across the 87 of their papers we have counts for
8 papers · 1 filter
Dissecting the Stochastic Gravitational Wave Background with Astrometry
Mesut Çalışkan, Yifan Chen, Liang Dai +3
Astrometry, the precise measurement of star motions, offers an alternative avenue to investigate low-frequency gravitational waves through the spatial deflection of photons, comple…
Detecting Strong Gravitational Lensing of Gravitational Waves with TianQin
Xin-yi Lin, Jian-dong Zhang, Liang Dai +2
When gravitational waves (GWs) pass by a massive object on its way to Earth, a strong gravitational lensing effect will happen. Thus, the GW signal will be amplified, deflected, an…
Lensing of gravitational waves: efficient wave-optics methods and validation with symmetric lenses
Giovanni Tambalo, Miguel Zumalacárregui, Liang Dai +1
Gravitational wave (GW) astronomy offers the potential to probe the wave-optics regime of gravitational lensing. Wave optics (WO) effects are relevant at low frequencies, when the…
Source properties of the lowest signal-to-noise-ratio binary black hole detections
Yiwen Huang, Carl-Johan Haster, Salvatore Vitale +6
We perform a detailed parameter estimation study of binary black hole merger events reported in Zackay et al. and Venumadhav et al.. These are some of the faintest signals reported…
Detecting Lensing-Induced Diffraction in Astrophysical Gravitational Waves
Liang Dai, Shun-Sheng Li, Barak Zackay +2
Gravitational waves emitted from compact binary coalescence can be subject to wave diffraction if they are gravitationally lensed by an intervening mass clump whose Schwarzschild t…
Parameter Estimation for GW170817 using Relative Binning
Liang Dai, Tejaswi Venumadhav, Barak Zackay
Relative binning is a new method for fast and accurate evaluation of the likelihood of gravitational wave strain data. This technique can be used to produce reliable posterior dist…
On the waveforms of gravitationally lensed gravitational waves
Liang Dai, Tejaswi Venumadhav
Strong lensing by intervening galaxies can produce multiple images of gravitational waves from sources at cosmological distances. These images acquire additional phase-shifts as th…
Conformal Fermi Coordinates
Liang Dai, Enrico Pajer, Fabian Schmidt
Fermi Normal Coordinates (FNC) are a useful frame for isolating the locally observable, physical effects of a long-wavelength spacetime perturbation. Their cosmological application…