Anson Chen
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View article: Measuring the cosmic dipole with golden dark sirens in the era of next-generation ground-based gravitational wave detectors
Measuring the cosmic dipole with golden dark sirens in the era of next-generation ground-based gravitational wave detectors Open
The tensions between cosmological parameter measurements from the early-universe and the late-universe datasets offer an exciting opportunity to explore new physics, if not accounted for unknown systematics. Apart from the well-known Hubbl…
View article: Invariance transformations in wave-optics lensing: Implications for gravitational-wave astrophysics and cosmology
Invariance transformations in wave-optics lensing: Implications for gravitational-wave astrophysics and cosmology Open
Gravitational lensing offers unique opportunities to learn about the astrophysical origin of distant sources, the abundance of intervening objects acting as lenses, and gravity and cosmology in general. However, all this information can on…
View article: Invariance transformations in wave-optics lensing: implications for gravitational-wave astrophysics and cosmology
Invariance transformations in wave-optics lensing: implications for gravitational-wave astrophysics and cosmology Open
Gravitational lensing offers unique opportunities to learn about the astrophysical origin of distant sources, the abundance of intervening objects acting as lenses, and gravity and cosmology in general. However, all this information can on…
View article: A fast frequency-domain expression for the time-dependent detector response of ground-based gravitational-wave detectors to compact binary signals
A fast frequency-domain expression for the time-dependent detector response of ground-based gravitational-wave detectors to compact binary signals Open
For proposed third-generation gravitational-wave detectors such as the Einstein Telescope and Cosmic Explorer, whose sensitive bands are proposed to extend down to 5 Hz or below, the signals of low-mass compact binaries such as binary neut…
View article: Testing the nature of gravitational wave propagation using dark sirens and galaxy catalogues
Testing the nature of gravitational wave propagation using dark sirens and galaxy catalogues Open
The dark sirens method enables us to use gravitational wave events without electromagnetic counterparts as tools for cosmology and tests of gravity. Furthermore, the dark sirens analysis code gwcosmo can now robustly account for informatio…
View article: Joint cosmological and gravitational-wave population inference using dark sirens and galaxy catalogues
Joint cosmological and gravitational-wave population inference using dark sirens and galaxy catalogues Open
In the absence of numerous gravitational-wave detections with confirmed electromagnetic counterparts, the “dark siren” method has emerged as a leading technique of gravitational-wave cosmology. The method allows redshift information of suc…
View article: Testing the nature of gravitational wave propagation using dark sirens and galaxy catalogues
Testing the nature of gravitational wave propagation using dark sirens and galaxy catalogues Open
The dark sirens method enables us to use gravitational wave events without electromagnetic counterparts as tools for cosmology and tests of gravity. Furthermore, the dark sirens analysis code gwcosmo can now robustly account for informatio…
View article: Joint cosmological and gravitational-wave population inference using dark sirens and galaxy catalogues
Joint cosmological and gravitational-wave population inference using dark sirens and galaxy catalogues Open
In the absence of numerous gravitational-wave detections with confirmed electromagnetic counterparts, the "dark siren" method has emerged as a leading technique of gravitational-wave cosmology. The method allows redshift information of suc…
View article: Testing gravitational wave propagation with multiband detections
Testing gravitational wave propagation with multiband detections Open
Effective field theories (EFT) of dark energy (DE) — built to parameterise the properties of DE in an agnostic manner — are severely constrained by measurements of the propagation speed of gravitational waves (GW). However, GW frequencies …
View article: Testing gravitational wave propagation with multiband detections
Testing gravitational wave propagation with multiband detections Open
Effective field theories (EFT) of dark energy (DE) -- built to parameterise the properties of DE in an agnostic manner -- are severely constrained by measurements of the propagation speed of gravitational waves (GW). However, GW frequencie…
View article: Measuring the propagation speed of gravitational waves with LISA
Measuring the propagation speed of gravitational waves with LISA Open
The propagation speed of gravitational waves, c T , has been tightly constrained by the binary neutron star merger GW170817 and its electromagnetic counterpart, under the assumption of a frequency-independent c T . Drawing upon arguments f…
View article: Measuring the propagation speed of gravitational waves with LISA
Measuring the propagation speed of gravitational waves with LISA Open
The propagation speed of gravitational waves, $c_T$, has been tightly constrained by the binary neutron star merger GW170817 and its electromagnetic counterpart, under the assumption of a frequency-independent $c_T$. Drawing upon arguments…
View article: Distinguishing high-mass binary neutron stars from binary black holes with second- and third-generation gravitational wave observatories
Distinguishing high-mass binary neutron stars from binary black holes with second- and third-generation gravitational wave observatories Open
(Abridged) While the gravitational-wave (GW) signal GW170817 was accompanied\nby a variety of electromagnetic (EM) counterparts, sufficiently high-mass\nbinary neutron star (BNS) mergers are expected to be unable to power bright EM\ncounte…