3 papers
astro-ph.IM2025
Co-SOM: Co-training for photometric redshift estimation using Self-Organizing Maps
Alvaro Callejas-Tavera, Erik Molino-Minero-Re, Octavio Valenzuela
The upcoming galaxy large-scale surveys, such as the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST), will generate photometry for billions of galaxies. The inte…
cs.CV2025
GraViT: Transfer Learning with Vision Transformers and MLP-Mixer for Strong Gravitational Lens Discovery
René Parlange, Juan C. Cuevas-Tello, Octavio Valenzuela +4
Gravitational lensing offers a powerful probe into the properties of dark matter and is crucial to infer cosmological parameters. The Legacy Survey of Space and Time (LSST) is pred…
astro-ph.GA2025
Hierarchical structure of the cosmic web and galaxy properties
Mariana Jaber, Marius Peper, Wojciech A. Hellwing +2
Voids possess a very complex internal structure and dynamics. Using -body simulations we study the hierarchical nature of sub-structures present in the cosmic web (CW). We use t…