Ryuichiro Hada
Physics and Astronomy · The Ohio State University
Publications
15
Citations
95
Est. group size
—
Recurring co-author estimate
Active years
11
Publishing since 2016
Ryuichiro Hada works in observational and theoretical cosmology, studying how large-scale structures like galaxies and quasars trace the distribution of matter in the universe. Recent work focuses on using quasars (very bright, distant galactic nuclei) and the Lyman-alpha forest (light patterns from intervening gas) to measure cosmic distances and quasar properties, as well as reconstructing the early universe's density field from galaxy surveys. Earlier work examined how weak gravitational lensing affects observations of Type Ia supernovae, used to constrain properties like neutrino mass and dark matter.
Publication output was sparse with gaps in the middle of the decade but has increased notably in the last two to three years, culminating in a cluster of publications in 2025-2026.
Generated by claude-sonnet-5 from public bibliographic data · Jul 20, 2026
- Supplementary data for: Measurements of quasar proximity zones with the Lyman-α forest of DESI Y1 quasars
Zenodo (CERN European Organization for Nuclear Research) · 2026
- Supplementary data for: Measurements of quasar proximity zones with the Lyman-α forest of DESI Y1 quasars
Zenodo (CERN European Organization for Nuclear Research) · 2026
- Cosmological inference with halo clustering reconstructed from the redshift-space galaxy distribution
arXiv (Cornell University) · 2026
- Cosmological inference with halo clustering reconstructed from the redshift-space galaxy distribution
arXiv (Cornell University) · 2026
- Measurements of Quasar Proximity Zones with the Lyα Forest of DESI Y1 Quasars
The Astrophysical Journal · 2026
- Measurements of quasar proximity zones with the Ly$α$ forest of DESI Y1 quasars
HAL (Le Centre pour la Communication Scientifique Directe) · 2025
- Measurements of quasar proximity zones with the Lyman-$α$ forest of DESI Y1 quasars
ArXiv.org · 2025
- Prospects for constraining quasar ages with fibre spectrographs: quasar-induced Ly α emission from the intergalactic medium
Monthly Notices of the Royal Astronomical Society · 2024
- Prospects for constraining quasar ages with fiber spectrographs: quasar-induced Ly$α$ emission from the intergalactic medium
arXiv (Cornell University) · 2023
- Forecasts of cosmological constraints from Type Ia supernovae including the weak-lensing convergence
Journal of Cosmology and Astroparticle Physics · 2019
- Forecasts for warm dark matter from weakly lensed Type Ia supernovae
arXiv (Cornell University) · 2019
- Probing the accelerating universe with an iterative reconstruction of the initial density field
Institutional Repositories DataBase (IRDB) · 2019
- An iterative reconstruction of cosmological initial density fields
Monthly Notices of the Royal Astronomical Society · 2018
- Application of the iterative reconstruction to simulated galaxy fields
Monthly Notices of the Royal Astronomical Society · 2018
- CONSTRAINTS ON NEUTRINO MASSES FROM THE LENSING DISPERSION OF TYPE Ia SUPERNOVAE
The Astrophysical Journal · 2016
- arXiv (Cornell University)×4
- Monthly Notices of the Royal Astronomical Society×3
- The Astrophysical Journal×2
- Zenodo (CERN European Organization for Nuclear Research)×2
- Journal of Cosmology and Astroparticle Physics×1
- N. MacCrann
Physics and Astronomy · The Ohio State University
- Cullan Howlett
Physics and Astronomy · The Ohio State University
- Andrei Cuceu
Physics and Astronomy · The Ohio State University
- J. Elvin-Poole
Physics and Astronomy · The Ohio State University
- Christopher M. Hirata
Physics and Astronomy · The Ohio State University
This profile was generated automatically from public scholarly data (OpenAlex). Group size and activity levels are estimates derived from co-authorship patterns.
Last updated Jul 19, 2026.
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