Author

J. Pierel

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The ﬁrst statistical study of over 100 magniﬁed stellar events at a redshift z ≈ 0 . 725 with JWST

J. M. Palencia, Feng-Wu Sun, J. Diego et al. · 0 citations

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