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Review Open access Oct 2026

Euclid Quick Data Release (Q1). XLIII. The Strong Lensing Discovery Engine F -- Bright and low-redshift strong lenses

We present 72 additional galaxy-galaxy strong lenses that complement the sample discovered in the Euclid Quick Release 1 data (63.1, catalogue, caused us to miss several bright and low-redshift strong lenses. They add more than 10% of new strong-lens candidates compared to the previous search. In total, the catalogue i...

L. Ecker, M. Fabricius, S. Seitz et al. · 0 citations
Preprint Oct 2026

Euclid Quick Data Release (Q1). Mass-to-light ratio of elliptical galaxies: constraints from strong lensing

Mass is among the most fundamental properties describing a galaxy. The relation between the luminosity and the total mass of a galaxy contains information on the efficiency of the star formation process and on the distribution of dark matter. We used strong gravitational lensing data from the Euclid Quick Data Release...

Euclid Collaboration A. Sonnenfeld, A. Nersesian, K. Rojas et al. · 0 citations
Preprint Oct 2026

TDCOSMO 2026: new insights on the Hubble tension from strong lensing time delays

We discuss the measurement of the Hubble constant ($H_0$) in flat $\Lambda$ cold dark matter cosmology based on the blind hierarchical analysis of 11 multiply-imaged quasars (hereafter the TDCOSMO-2026 sample) and described in greater detail in a companion paper. In addition to the time delays, we use lens models based...

Tdcosmo Collaboration, S. Birrer, M. Cappellari et al. · 1 citation

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