3 papers
astro-ph.GA2026
Dissecting ultra-diffuse galaxies in the field
A. Vanzanella, K. Malek, Junais +16
Context. Ultra-diffuse galaxies (UDGs) in the field are faint, diffuse systems that remain poorly represented in the literature due to the need for spectroscopic confirmation and t…
astro-ph.HE2026
Multi-epoch afterglow rebrightenings in GRB 250129A: Evidence for successive shock interactions
D. Akl, S. Antier, H. Koehn +105
Most long gamma-ray bursts (GRBs) exhibit afterglows broadly consistent with external forward-shock emission, typically described by smooth broken power-law decays in the multiband…
astro-ph.GA2025
Characterizing the outer disk of eXtended-UV galaxies in the optical domain with deep surveys
E. Bernaud, S. Boissier, Junais +3
Aims : Extended-UV (XUV) galaxies are galaxies presenting an extended outer ultraviolet disks. Although some Giant Low Surface Brightness (GLSB) galaxies are also XUV, their relati…