Author

B. Frye

3 papers indexed here

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Preprint Sep 2026

Constraints on the Pop III Sky Surface Brightness from High-Redshift Caustic Transients in MACS0416

Population III (Pop III) stars are hypothetical zero-metallicity stellar structures formed from primordial hydrogen and helium. They are theorized to span a wide mass range, extending to several 100 solar masses, and may have played important roles in nucleosynthesis and reionization. Their expected fluxes are far belo...

Jakob Perivolotis, P. Bergamini, R. Windhorst et al. · 1 citation

Review Sep 2026

SN Helios: A Multiply Imaged Type II Supernova Opening Time-Delay Cosmography beyond redshift of 3

We report the discovery and spectroscopic confirmation of SN Helios, a strongly lensed, multiply imaged Type II supernova (SN) at $z=3.34$ behind the galaxy cluster RXC J0018.5+1626. The transient was identified as a red F150W-dropout source (F277W = 26.1 mag) in JWST/NIRCam imaging taken on 2026 July 3 for the VENUS s...

S. Fujimoto, C. Larison, J. Pierel et al. · 0 citations

Open access Oct 2026

A new H_0 measurement with supernovae Requiem and Encore using Gravity.jl

We present a strong-lensing analysis of the galaxy cluster MACS J0138.0-2155 (z_ =0.336), the first known cluster lens discovered to host two distinct multiply imaged type Ia supernovae (SNe): SN Requiem and SN Encore. Both transients are located in the massive, multiply imaged red galaxy MRG-M0138 at z_ =1.949. The pr...

L. Bazzanini, G. Di Rosa, A. Acebron et al. · Astronomy & Astrophysics · 0 citations