@article{kehrig:insu-03644751, TITLE = {{The Extended He II $\lambda$4686-emitting Region in IZw 18 Unveiled: Clues for Peculiar Ionizing Sources}}, AUTHOR = {Kehrig, C. and V{\'i}lchez, J. M. and P{\'e}rez-Montero, E. and Iglesias-P{\'a}ramo, J. and Brinchmann, J. and Kunth, D. and Durret, F. and Bayo, F. M.}, URL = {https://insu.hal.science/insu-03644751}, JOURNAL = {{The Astrophysical Journal Letters}}, VOLUME = {801}, YEAR = {2015}, DOI = {10.1088/2041-8205/801/2/L28}, KEYWORDS = {galaxies: dwarf ; galaxies: individual: IZw 18 ; galaxies: ISM ; galaxies: stellar content ; ISM: lines and bands ; Astrophysics - Astrophysics of Galaxies}, HAL_ID = {insu-03644751}, HAL_VERSION = {v1}, }