4 papers
HST imaging, pipeline modeling, and time-delay predictions of 2 triply-imaged and 15 quadruply-imaged lensed quasars
William Sheu, Tommaso Treu, Adriano Agnello +10
The Hubble-Lema\^ıtre tension remains a significant challenge in modern cosmology, exhibiting a discrepancy between early-Universe cosmic microwave background measurements and loca…
TDCOSMO XXV: A "soup-to-nuts" 6.5% measurement strong lensing and dynamics with a maximally flexible mass sheet
William Sheu, Tommaso Treu, Martin Millon +16
We present a blind time-delay cosmography measurement of the Hubble constant based on the quadruply imaged quasar SDSSJ1433+6007. Our analysis combines deep Hubble Space Tele…
Supernova 2025wny: High-angular resolution Keck/NIRC2 observations and preliminary lens modeling
Christopher J. Storfer, Kenneth C. Wong, Ana Acebron +10
Multiply imaged, gravitationally lensed supernovae are rare but powerful tools for providing independent measurements on cosmological parameters. Supernova (SN) 2025wny ("SN Winny"…
Combining neural networks with galaxy light subtraction for discovering strong lenses in the HSC SSP
Yuichiro Ishida, Kenneth C. Wong, Anton T. Jaelani +1
Galaxy-scale strong gravitational lenses are valuable objects for a variety of astrophysical and cosmological applications. Strong lensing galaxies are rare, so efficient search me…