activity
20182026
most citedCosmology with the Wide-Field Infrared Survey Telescope -- Multi-Probe Strategies

117 citations · 289 across the 19 of their papers we have counts for

collaborators

19 papers

astro-ph.CO2026

Accurate modeling for 32pt analyses in Roman and Rubin: a study of model approximations

Junzhou Zhang, Chihway Chang, Jiachuan Xu +6

One of the pillars of modern cosmology is the use of galaxy imaging surveys to extract information from the large-scale structure. In recent surveys, this measurement is typically…

astro-ph.CO2026

Optimizing the Roman Space Telescope High-Latitude Wide Area Survey for mitigating chromatic PSF effects on shear measurement

Federico Berlfein, Rachel Mandelbaum, Jiachuan Xu +1

Chromatic point-spread-function (PSF) effects arise from differences between the spectral energy distributions (SEDs) of stars, used to model the PSF, and galaxies, used to measure…

astro-ph.CO2026★ 1 cited

Fisher Forecasts for Cosmological Yields from pt Analysis of the Roman Space Telescope High Latitude Imaging Survey

Kaili Cao, David H. Weinberg, Vivian Miranda +5

The High Latitude Imaging Survey (HLIS) of NASA's Nancy Grace Roman Space Telescope will provide powerful tests of cosmological models through sensitive measurements of cosmic shea…

astro-ph.CO2025★ 1 cited

Constraining baryonic feedback and cosmology from DES Y3 and Planck PR4 62pt data. I. CDM models

Jiachuan Xu, Tim Eifler, Elisabeth Krause +3

We combine weak lensing, galaxy clustering, cosmic microwave background (CMB) lensing, and their cross-correlations (so-called 62pt) to constrain cosmology and baryonic fee…

astro-ph.CO2025

Cosmic shear with one component and its application to future radio surveys

Yu-Hsiu Huang, Elisabeth Krause, Tim Eifler +4

We present a new approach to measuring cosmic shear: the one-component kinematic lensing (KL) method. This technique provides a simplified implementation of KL that reduces shape n…

astro-ph.CO2024★ 1 cited

Cosmology from weak lensing, galaxy clustering, CMB lensing and tSZ: II. Optimizing Roman survey design for CMB cross-correlation science

Tim Eifler, Xiao Fang, Elisabeth Krause +8

We explore synergies between the Nancy Grace Roman Space Telescope High Latitude Wide Area Survey (HLWAS) and CMB experiments, specifically Simons Observatory (SO) and CMB-Stage4 (…

astro-ph.CO2024★ 2 cited

Kinematic Lensing Inference II: Cluster Lensing with (1) Galaxies

Pranjal R. S., Eric Huff, Elisabeth Krause +4

We present the first detection of a cluster lensing signal with `Kinematic Lensing' (KL), a novel weak lensing method that combines photometry, spectroscopy, and the Tully-Fisher r…

astro-ph.CO2024★ 1 cited

Kinematic Lensing with the Dark Energy Spectroscopic Instrument -- Probing structure formation at very low redshift

Jiachuan Xu, Tim Eifler, Eason Wang +5

We explore the science prospects of a 14,000 deg Kinematic Lensing (KL) survey with the Dark Energy Spectroscopic Instrument (DESI) and overlapping imaging surveys. KL infers t…

astro-ph.CO2024★ 3 cited

Astrophysical systematics in Kinematic Lensing: quantifying an Intrinsic Alignment analog

Yu-Hsiu Huang, Elisabeth Krause, Jiachuan Xu +3

Kinematic lensing (KL) is a new weak lensing technique that reduces shape noise for disk galaxies by including spectroscopically measured galaxy kinematics in addition to photometr…

astro-ph.CO2023

Constraining Baryonic Physics with DES Y1 and Planck data -- Combining Galaxy Clustering, Weak Lensing, and CMB Lensing

Jiachuan Xu, Tim Eifler, Vivian Miranda +6

We constrain cosmology and baryonic feedback scenarios with a joint analysis of weak lensing, galaxy clustering, cosmic microwave background (CMB) lensing, and their cross-correlat…

astro-ph.GA2023★ 5 cited

The Sloan Digital Sky Survey Reverberation Mapping Project: Key Results

Yue Shen, Catherine J. Grier, Keith Horne +44

We present the final data from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project, a precursor to the SDSS-V Black Hole Mapper Reverberation Mapping program. This…

astro-ph.CO2023★ 7 cited

Growth and Geometry Split in Light of the DES-Y3 Survey

Kunhao Zhong, Evan Saraivanov, Vivian Miranda +3

We test the smooth dark energy paradigm using Dark Energy Survey (DES) Year 1 and Year 3 weak lensing and galaxy clustering data. Within the CDM and CDM model we separate the…

astro-ph.GA2022★ 7 cited

Kinematic Lensing Inference I: Characterizing Shape Noise with Simulated Analyses

Pranjal R. S., Elisabeth Krause, Hung-Jin Huang +4

The unknown intrinsic shape of source galaxies is one of the largest uncertainties of weak gravitational lensing (WL). It results in the so-called shape noise at the level of $σ_ε^…

astro-ph.CO2022★ 5 cited

Kinematic Lensing with the Roman Space Telescope

Jiachuan Xu, Tim Eifler, Eric Huff +4

Kinematic lensing (KL) is a new cosmological measurement technique that combines traditional weak lensing (WL) shape measurements of disc galaxies with their kinematic information.…

astro-ph.GA2021★ 26 cited

Spectroscopic Confirmation of two Extremely Massive Protoclusters BOSS1244 and BOSS1542 at

Dongdong Shi, Zheng Cai, Xiaohui Fan +3

We present spectroscopic confirmation of two new massive galaxy protoclusters at , BOSS1244 and BOSS1542, traced by groups of Coherently Strong Ly Absorption (CoS…

astro-ph.CO2020★ 117 cited

Cosmology with the Wide-Field Infrared Survey Telescope -- Multi-Probe Strategies

Tim Eifler, Hironao Miyatake, Elisabeth Krause +25

We simulate the scientific performance of the Wide-Field Infrared Survey Telescope (WFIRST) High Latitude Survey (HLS) on dark energy and modified gravity. The 1.6 year HLS Referen…

astro-ph.CO2020★ 51 cited

Cosmology with the Wide-Field Infrared Survey Telescope -- Synergies with the Rubin Observatory Legacy Survey of Space and Time

Tim Eifler, Melanie Simet, Elisabeth Krause +27

We explore synergies between the space-based Wide-Field Infrared Survey Telescope (WFIRST) and the ground-based Rubin Observatory Legacy Survey of Space and Time (LSST). In particu…

astro-ph.GA2018★ 38 cited

Overdensity of submillimeter galaxies around the MAMMOTH-1 nebula

F. Arrigoni Battaia, Chian-Chou Chen, M. Fumagalli +7

In the hierarchical model of structure formation, giant elliptical galaxies form through merging processes within the highest density peaks known as protoclusters. While high-redsh…

astro-ph.CO2018★ 24 cited

Signatures of Cosmic Reionization on the 21cm 2- and 3-point Correlation Function I: Quadratic Bias Modeling

Kai Hoffmann, Yi Mao, Jiachuan Xu +2

The three-point correlation function (3PCF) of the 21cm brightness temperature from the Epoch of Reionization (EoR) probes complementary information to the commonly studied two-poi…