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Impact of gravitational lensing on black hole mass function inference with third-generation gravitational wave detectors
Xianlong He, Kai Liao, Xuheng Ding +4
The recent rapid growth of the black hole (BH) catalog from gravitational waves (GWs), has allowed us to study the substructure of black hole mass function (BHMF) beyond the simple…
lenstronomy II: A gravitational lensing software ecosystem
Simon Birrer, Anowar J. Shajib, Daniel Gilman +18
lenstronomy is an Astropy-affiliated Python package for gravitational lensing simulations and analyses. lenstronomy was introduced by Birrer and Amara (2018) and is based on the li…
Improved time-delay lens modelling and inference with transient sources
Xuheng Ding, Kai Liao, Simon Birrer +3
Strongly lensed explosive transients such as supernovae, gamma-ray bursts, fast radio bursts, and gravitational waves are very promising tools to determine the Hubble constant ($H_…
Time Delay Lens Modelling Challenge
X. Ding, T. Treu, S. Birrer +26
In recent years, breakthroughs in methods and data have enabled gravitational time delays to emerge as a very powerful tool to measure the Hubble constant . However, published…
Probing compact dark matter with gravitational wave fringes detected by the Einstein Telescope
Kai Liao, Shuxun Tian, Xuheng Ding
Unlike the electromagnetic radiation from astrophysical objects, gravitational waves (GWs) from binary star mergers have much longer wavelengths and are coherent. For ground-based…
TDCOSMO. I. An exploration of systematic uncertainties in the inference of from time-delay cosmography
M. Millon, A. Galan, F. Courbin +22
Time-delay cosmography of lensed quasars has achieved 2.4% precision on the measurement of the Hubble constant, . As part of an ongoing effort to uncover and control systemati…
A SHARP view of H0LiCOW: from three time-delay gravitational lens systems with adaptive optics imaging
Geoff C. -F. Chen, Christopher D. Fassnacht, Sherry. H. Suyu +20
We present the measurement of the Hubble Constant, , with three strong gravitational lens systems. We describe a blind analysis of both PG1115+080 and HE0435-1223 as well as a…
H0LiCOW XIII. A 2.4% measurement of from lensed quasars: tension between early and late-Universe probes
Kenneth C. Wong, Sherry H. Suyu, Geoff C. -F. Chen +23
We present a measurement of the Hubble constant () and other cosmological parameters from a joint analysis of six gravitationally lensed quasars with measured time delays. A…
Anomalies in Time Delays of Lensed Gravitational Waves and Dark Matter Substructures
Kai Liao, Xuheng Ding, Marek Biesiada +2
The cold dark matter scenario of hierarchical large-scale structure formation predicts the existence of abundant subhalos around large galaxies. However, the number of observed dwa…
Statistical analysis with cosmic-expansion-rate measurements and two-point diagnostics
Xiaogang Zheng, Marek Biesiada, Xuheng Ding +3
Direct measurements of Hubble parameters are very useful for cosmological model parameters inference. Based on them, Sahni, Shafieloo and Starobinski introduced a two-point…
Strongly gravitational lensed SNe Ia as multi-messengers: Direct test of the Friedmann-Lema\^ıtre-Robertson-Walker metric
Jing-Zhao Qi, Shou Cao, Marek Biesiada +3
We present a new idea of testing the validity of the Friedman-Lema\^ıtre-Robertson-Walker metric, through the multiple measurements of galactic-scale strong gravitational lensing s…
Curvature from strong gravitational lensing: a spatially closed Universe or systematics?
Zhengxiang Li, Xuheng Ding, Guo-Jian Wang +2
Model-independent constraints on the spatial curvature are not only closely related to important problems such as the evolution of the Universe and properties of dark energy, but a…
Cosmological inference from standard sirens without redshift measurements
Xuheng Ding, Marek Biesiada, Xiaogang Zheng +3
The purpose of this work is to investigate the prospects of using the future standard siren data without redshift measurements to constrain cosmological parameters. With successful…
Time Delay Lens Modeling Challenge: I. Experimental Design
Xuheng Ding, Tommaso Treu, Anowar J. Shajib +11
Strong gravitational lenses with measured time delay are a powerful tool to measure cosmological parameters, especially the Hubble constant (). Recent studies show that by com…
Precision cosmology from future lensed gravitational wave and electromagnetic signals
Kai Liao, Xi-Long Fan, Xu-Heng Ding +2
The standard siren approach of gravitational wave cosmology appeals to the direct luminosity distance estimation through the waveform signals from inspiralling double compact binar…
What are and diagnostics telling us in light of data?
Xiaogang Zheng, Xuheng Ding, Marek Biesiada +2
Two-point diagnostics and have been introduced as an interesting tool for testing the validity of the CDM model. Quite recently, Sahni, Shafieloo…
Is there evidence for dark energy evolution?
Xuheng Ding, Marek Biesiada, Shuo Cao +2
Recently, Sahni, Shafielo o & Starobinsky (2014) combined two independent measurements of from BAO data with the value of the Hubble constant , in order to tes…