#gravitational lensing
9 papers · 1 filter
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
The paper reports the discovery and detailed study of a type IIP core‑collapse supernova (SN Eos) at redshift 5.13, whose ultra‑faint, strongly lensed host galaxy is extremely meta…
Supermagnified Stars in Lensing Clusters and Small-Scale Structure in the Dark Matter
Gabriel Torralba, Jordi Miralda-Escudé
The paper describes how super‑magnified stars behind galaxy‑cluster lenses can be monitored for microlensing events, providing a sensitive probe of small‑scale dark‑matter structur…
(Re)solving the Complex Multiscale Morphology and V-shaped Spectral Energy Distribution of a Newly Discovered Strongly Lensed Little Red Dot in A383
Josephine F. W. Baggen, Pieter van Dokkum, Ivo Labbé +1
The paper reports JWST NIRCam observations of a strongly lensed, luminous "little red dot" galaxy at redshift 6.0 behind the cluster A383, revealing a complex morphology with disti…
Ricci Focusing Degeneracy between Dynamical Dark Energy and Matter Inhomogeneity
I. A. Moiseev, O. S. Sazhina
The paper examines how dynamical (phantom) dark energy affects light propagation using the Zeldovich‑Kantowski‑Dyer‑Roeder approximation, showing that its observational signatures…
Gravitational lensing of gravitational waves: universal characteristics of strongly lensed memory waveforms
Ruanjing Zhang, Zhi-Chao Zhao, Shaoqi Hou +3
The paper analyzes how strong gravitational lensing alters the gravitational‑wave memory signal, revealing universal, image‑type‑dependent waveform features that are independent of…
Testing the recovery of the NGC 6505 Einstein ring in deep OSN 1.5-m imaging
Homer Dávila Gutiérrez, Julio Carlos Bertua Marasca, Alejandro Heredia Teva +4
The paper evaluates whether a deep 1.5‑m ground‑based R‑band image can recover the Einstein ring of the low‑redshift galaxy NGC 6505 discovered by Euclid, and finds that the ring i…