1.2k citations · 6.4k across the 83 of their papers we have counts for
4 papers · 1 filter
Purely dry mergers do not explain the observed evolution of massive early-type galaxies since z = 1
Alessandro Sonnenfeld, Carlo Nipoti, Tommaso Treu
Several studies have suggested that the observed size evolution of massive early-type galaxies (ETGs) can be explained as a combination of dry mergers and progenitor bias, at least…
The SL2S Galaxy-scale Lens Sample. III. Lens Models, Surface Photometry and Stellar Masses for the final sample
Alessandro Sonnenfeld, Raphaël Gavazzi, Sherry H. Suyu +2
We present Hubble Space Telescope (HST) imaging data and CFHT Near IR ground-based images for the final sample of 56 candidate galaxy-scale lenses uncovered in the CFHT Legacy Surv…
The SL2S Galaxy-scale Lens Sample. IV. The dependence of the total mass density profile of early-type galaxies on redshift, stellar mass, and size
Alessandro Sonnenfeld, Tommaso Treu, Raphaël Gavazzi +4
We present optical and near infrared spectroscopy obtained at Keck, VLT, and Gemini for a sample of 36 secure strong gravitational lens systems and 17 candidates identified as part…
Cosmology from gravitational lens time delays and Planck data
S. H. Suyu, T. Treu, S. Hilbert +11
Under the assumption of a flat Lambda-CDM cosmology, recent data from the Planck satellite point toward a Hubble constant that is in tension with that measured by gravitational len…