157 citations · 249 across the 25 of their papers we have counts for
7 papers · 2 filters
TDCOSMO. XXIII. Measurement of the Hubble constant from the doubly lensed quasar HE1104-1805
Eric Paic, Frédéric Courbin, Christopher D. Fassnacht +18
Time-delay cosmography leverages strongly lensed quasars to measure the Universe's current expansion rate, H_0, independently from other methods. While the latest TDCOSMO results r…
MAGNUS II: Rotational support of massive early-type galaxies decreased over the past 7 billion years
Pritom Mozumdar, Michele Cappellari, Christopher D. Fassnacht +1
Understanding how the internal kinematics of massive galaxies evolve is key to constraining the physical processes that drive their assembly. We investigate the evolution of rotati…
MAGNUS I: A MUSE-DEEP Sample of Early-type Galaxies at Intermediate Redshift
Pritom Mozumdar, Michele Cappellari, Christopher D. Fassnacht +1
We present a sample of 213 early-type galaxies (ETGs) at redshifts . We combine deep integral-field spectroscopy from the MUSE-DEEP survey with high-resolution HST…
TDCOSMO XXIV. First spatially resolved kinematics of the lens galaxy obtained using JWST-NIRSpec to improve time-delay cosmography
Anowar J. Shajib, Tommaso Treu, Sherry H. Suyu +15
Spatially resolved stellar kinematics has become a key ingredient in time-delay cosmography to break the mass-sheet degeneracy in the mass profile and in turn provide a precise con…
TDCOSMO XXI. Accurate stellar velocity dispersions of the SL2S lens sample and the fundamental plane of the lensing mass
Pritom Mozumdar, Shawn Knabel, Tommaso Treu +4
We reanalyzed spectra that were taken as part of the SL2S lens galaxy survey with the goal to obtain the stellar velocity dispersion with a precision and accuracy sufficient for ti…
TDCOSMO XXII: Triaxiality and projection effects in time-delay cosmography
Xiang-Yu Huang, Simon Birrer, Michele Cappellari +3
Constraining the mass-sheet degeneracy (MSD) is crucial for improving the precision and accuracy of time-delay cosmography. Joint analyses of lensing and stellar kinematics are wid…
TDCOSMO XIX. Measuring stellar velocity dispersion with sub-percent accuracy for cosmography
Shawn Knabel, Pritom Mozumdar, Anowar J. Shajib +4
The stellar velocity dispersion () of massive elliptical galaxies is a key ingredient in breaking the mass-sheet degeneracy and obtaining precise and accurate cosmography from g…