activity
20062026
most citedGauging the dark matter fraction in a S0 galaxy at z=0.47 through gravitational lensing from deep HST/ACS imaging

17 citations · 40 across the 11 of their papers we have counts for

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Showing 2026Show all

5 papers · 1 filter

astro-ph.GA2026

A sub-100 pc view at z~5 of a Multiply-Imaged Massive Quiescent Galaxy

Richard Pan, Danilo Marchesini, Joseph F. V. Allingham +34

Recent James Webb Space Telescope spectroscopic surveys reveal an abundance of rapidly assembled early galaxies in the first billion years. Cosmological simulations struggle to rep…

astro-ph.GA2026

VENUS: an ultra-faint galaxy hosting the metal-poor type II supernova at Witnessing the initial metal enrichment with extremely frequent core-collapse supernovae?

Yoshihisa Asada, Seiji Fujimoto, Joseph F. V. Allingham +50

We present the first characterization of the host galaxy of a recently discovered type IIP SN at (SN Eos). SN Eos and its host galaxy are gravitationally lensed and multip…

astro-ph.CO2026

Predisposition of galaxy clusters to producing exotic hyperbolic umbilic lensing configurations

Quentin Basto, Johan Richard, David J. Lagattuta +2

Strong gravitational lensing is a powerful tool for investigating the universe's large-scale structure and understanding the properties of dark matter and dark energy. The magnific…

astro-ph.CO2026★ 1 cited

VENUS: Strong-lensing model of MACS J1931.8-2635 -- revealing the farthest multiply imaged supernova

Joseph F. V. Allingham, Adi Zitrin, Vasily Kokorev +42

We present a parametric strong-lensing model for the galaxy cluster MACS J1931.8-2635 (), accompanying the detection of the spectroscopically confirmed SN Eos at $z = 5…

astro-ph.GA2026

Caught in Swallowtails: Discovery of Two Swallowtail Image Formations in MS 0451.6-0305

Ashish K. Meena, Wenlei Chen, Lukas J. Furtak +6

We report the discovery of two swallowtail image formations at and behind the galaxy cluster MS 0451.6-0305 in JWST-NIRCam imaging. We find that in both of the ab…