R. Ryan

activity

20052026

most citedGalaxy Mergers at z>1 in the HUDF: Evidence for a Peak in the Major Merger Rate of Massive Galaxies

77 citations · 365 across the 33 of their papers we have counts for

collaborators

Showing astro-ph.COShow all

2 papers · 1 filter

astro-ph.CO2024★ 38 cited

JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78

J. D. R. Pierel, B. L. Frye, M. Pascale +60

Supernova (SN) H0pe is a gravitationally lensed, triply-imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Wel…

astro-ph.CO2023★ 21 cited

JWST's PEARLS: 119 multiply imaged galaxies behind MACS0416, lensing properties of caustic crossing galaxies, and the relation between halo mass and number of globular clusters at $z = 0.4$

Jose M. Diego, Nathan J. Adams, Steven Willner +26

We present a new lens model for the $z = 0.396$ galaxy cluster MACS J0416.1 $-$ 2403 based on a previously known set of 77 spectroscopically confirmed, multiply imaged galaxies plus an…

JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78

JWST's PEARLS: 119 multiply imaged galaxies behind MACS0416, lensing properties of caustic crossing galaxies, and the relation between halo mass and number of globular clusters at z=0.4

JWST's PEARLS: 119 multiply imaged galaxies behind MACS0416, lensing properties of caustic crossing galaxies, and the relation between halo mass and number of globular clusters at $z = 0.4$