activity
19952022
most citedDark energy constraints from cosmic shear power spectra: impact of intrinsic alignments on photometric redshift requirements

489 citations · 3.1k across the 54 of their papers we have counts for

collaborators

54 papers

astro-ph.CO2022★ 24 cited

Weak-lensing mass bias in merging galaxy clusters

Wonki Lee, Sangjun Cha, M. James Jee +6

Although weak lensing (WL) is a powerful method to estimate a galaxy cluster mass without any dynamical assumptions, a model bias can arise when the cluster density profile departs…

gr-qc2022★ 9 cited

Detectability of strongly lensed gravitational waves using model-independent image parameters

Saif Ali, Evangelos Stoikos, Evan Meade +2

Strong gravitational lensing of gravitational waves (GWs) occurs when the GWs from a compact binary system travel near a massive object. The mismatch between a lensed signal and un…

astro-ph.HE2022

The structure of cluster merger shocks: turbulent width and the electron heating timescale

H. R. Russell, P. E. J. Nulsen, D. Caprioli +10

We present a new 2 Ms Chandra observation of the cluster merger Abell 2146, which hosts two huge M~2 shock fronts each ~500 kpc across. For the first time, we resolve and measure t…

astro-ph.HE2021★ 1 cited

Constraining Merging Galaxy Clusters with X-ray and Lensing Simulations and Observations: The case of Abell 2146

Urmila Chadayammuri, John ZuHone, Paul Nulsen +5

Galaxy cluster mergers are a powerful laboratory for testing cosmological and astrophysical models. However, interpreting individual merging clusters depends crucially on their mer…

astro-ph.CO2019★ 24 cited

The impact of baryonic physics and massive neutrinos on weak lensing peak statistics

Matthew Fong, Miyoung Choi, Victoria Catlett +5

We study the impact of baryonic processes and massive neutrinos on weak lensing peak statistics that can be used to constrain cosmological parameters. We use the BAHAMAS suite of c…

astro-ph.CO2018★ 13 cited

Prospects for Determining the Mass Distributions of Galaxy Clusters on Large Scales Using Weak Gravitational Lensing

M. Fong, R. Bowyer, A. Whitehead +4

For more than two decades, the Navarro, Frenk, and White (NFW) model has stood the test of time; it has been used to describe the distribution of mass in galaxy clusters out to the…