New Publication
New Cosmology group publication
October 10, 2024
Observational Cosmology GroupAuthors are Dane Noelle Cross and Carles Sánchez
Dane Noelle Cross and Carles Sánchez published a paper titled Inverse Galaxy-Galaxy Lensing: Magnification, Intrinsic Alignments and Cosmology .
The paper discusses how current and upcoming imaging galaxy surveys are extending galaxy samples to higher redshifts. This trend is particularly notable for lens galaxies, where only galaxy positions (not shapes) are needed. As a result, lens galaxies may frequently be observed at redshifts higher than those of source galaxies, changing the traditional galaxy-galaxy lensing configuration. In this paper, the authors explore where lens galaxies are behind source galaxies, and demonstrate how it is possible to tease out systematic error and better constrain cosmology.
Event
Outreach talk about the latest DESI results
June 11, 2025
Sindhu Satyavolu and Laura Casas delivered the seminar “Probing Cosmic Acceleration with DESI: Is Dark Energy Evolving?” at the Sala de Graus II (UAB), in a hybrid format. The speakers presented the latest results from the Dark Energy Spectroscopic Instrument (DESI) and introduced key cosmological concepts to ensure accessibility for a non-specialist audience.