Missing baryons recovered with kSZ + CMB lensing
July 18, 2025·
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1 min read
Gerrit S. Farren
The paper Missing baryons recovered: a measurement of the gas fraction in galaxies and groups with the kinematic Sunyaev–Zel’dovich effect and CMB lensing — first-authored by Boryana Hadzhiyska, with Simone Ferraro, Noah Sailer, Rongpu Zhou and me — is now in Phys. Rev. D. It sheds new light on the distribution and abundance of baryons around DESI galaxy groups.
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Authors
Gerrit S. Farren
(he/him)
Cosmologist & Data Scientist | Mapping the Universe at Scale
Cosmologist working on multi-probe analyses of the largest cosmological datasets. I build large scale analysis pipelines that combine Bayesian inference, distributed/HPC computing, and careful systematics control to turn modern survey data into robust physical insight.