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New insights on the nebular emission, ionizing radiation and low metallicity of Green Peas from advanced modelling
Vital Fernández, R. Amorín, E. Pérez-Montero +3
Low-metallicity, compact starburst galaxies referred to as Green Peas (GPs) provide a unique window to study galactic evolution across cosmic epochs. In this work, we present new d…
Extreme Emission-Line Galaxies in SDSS. I. Empirical and model-based calibrations of chemical abundances
E. Pérez-Montero, R. Amorín, J. Sánchez Almeida +3
Local star-forming galaxies show properties that are thought to differ from galaxies in the early Universe. Among them, the ionizing stellar populations and the gas geometry make t…
On the contribution of the X-ray source to the extended nebular HeII emission in IZw18
C. Kehrig, M. A. Guerrero, J. M. Vilchez +1
Nebular HeII emission implies the presence of energetic photons (E54 eV). Despite the great deal of effort dedicated to understanding HeII ionization, its origin has remained…