27 papers
The Subversive Role of Excessive External Shear in Concealing Lensing Anomalies
Amruth Alfred, Shashpal Singh, Rommulus Francis Lewis +5
To best reproduce observed multiply-lensed lensed images, lens models usually incorporate shear attributed to objects unrelated to the lensing galaxy (i.e., external shear): whethe…
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…
A stellar dynamical mass measurement of an inactive black hole at redshift 2
Andrew B. Newman, Meng Gu, Sirio Belli +34
Supermassive black holes and their host galaxies grow together over time, producing correlations between the black hole mass and various galaxy properties. Determining the evolutio…
Little red dots as a cosmological probe: constraining with quasi-periodic pulsations
Zijian Zhang, Kohei Inayoshi, Masamune Oguri +4
The James Webb Space Telescope (JWST) has uncovered a population of ``little red dots'' (LRDs) at , potentially representing early supermassive black holes embedded in…
SLSim: a strong lensing population simulation package
Narayan Khadka, Simon Birrer, Henry Best +45
Gravitational lensing offers unique insights into cosmology by bending light around massive objects. Strong gravitational lensing, in particular, produces magnified and often multi…
The stellar and dark matter distributions in early-type galaxies measured by stacked weak gravitational lensing
Momoka Fujikawa, Masamune Oguri
We investigate stellar mass and central dark matter density profiles of photometric luminous red galaxies with stellar masses of using weak gravitation…