Skip to content

Author

Param Upadhyay

1 paper indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Sep 2026

Tangled $\tau$: Planck CMB Constraints on Flash Reionization

Recent cosmological tensions have renewed interest in the role of reionization in parameter inference, and flash reionization has been proposed as a transient high-redshift ionization episode that can increase the Thomson optical depth while remaining compatible with CMB polarization data. In this work, we present the...

Param Upadhyay, E. Ferreira, Evan McDonough · 1 citation

We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.