activity
20242026
most citedTDCOSMO XVII. New time delays in 22 lensed quasars from optical monitoring with the ESO-VST 2.6m and MPG 2.2m telescopes

8 citations · 12 across the 5 of their papers we have counts for

collaborators

7 papers

astro-ph.CO2026

Time-delay and lens galaxy redshift in the doubly imaged quasar PS J2305+3714

O. A. Burkhonov, V. N. Shalyapin, A. V. Sergeyev +6

We present results from a seven-season (2018-2024) monitoring campaign of the gravitationally lensed quasar system PS J2305+3714 using the 1.5-m Maidanak Telescope in the optical R…

astro-ph.GA2025

A song of interactions and mergers: The case of NGC 4709

S. Federle, M. Gómez, S. Mieske +3

Globular clusters (GCs) are fundamental tools to unveil the interaction and merger history of their host galaxies. Our goal is to perform the photometric analysis of the globular c…

astro-ph.CO2025

TDCOSMO 2025: Cosmological constraints from strong lensing time delays

TDCOSMO Collaboration, Simon Birrer, Elizabeth J. Buckley-Geer +30

We present cosmological constraints from 8 strongly lensed quasars (hereafter, the TDCOSMO-2025 sample). Building on previous work, our analysis incorporated new deflector stellar…

astro-ph.IM20254 cited

Deep learning to improve the discovery of near-Earth asteroids in the Zwicky Transient Facility

Belén Yu Irureta-Goyena, George Helou, Jean-Paul Kneib +7

We present a novel pipeline that uses a convolutional neural network (CNN) to improve the detection capability of near-Earth asteroids (NEAs) in the context of planetary defense. O…

astro-ph.IM2025

LTDE: The Lens Time Delay Experiment I. From pixels to light curves

Favio Neira, Frédéric Courbin, Frédéric Dux +1

Gravitationally lensed quasars offer a unique opportunity to study cosmological and extragalactic phenomena, using reliable light curves of the lensed images. This requires accurat…

astro-ph.CO20258 cited

TDCOSMO XVII. New time delays in 22 lensed quasars from optical monitoring with the ESO-VST 2.6m and MPG 2.2m telescopes

Frédéric Dux, Martin Millon, Aymeric Galan +29

We present new time delays, the main ingredient of time delay cosmography, for 22 lensed quasars resulting from high-cadence r-band monitoring on the 2.6 m ESO VLT Survey Telescope…