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PopIII-star siblings in IZw18 and WRs in metal-poor galaxies unveiled from integral field spectroscopy
Carolina Kehrig, Jose M. Vilchez, Enrique Perez-Montero +5
Here we highlight our recent results from the IFS study of Mrk178, the closest metal-poor WR galaxy, and of IZw18, the most metal-poor star-forming galaxy known in the local Univer…
Localized starbursts in dwarf galaxies produced by impact of low metallicity cosmic gas clouds
J. Sanchez Almeida, B. G. Elmegreen, C. Munoz-Tunon +7
Models of galaxy formation predict that gas accretion from the cosmic web is a primary driver of star formation over cosmic history. Except in very dense environments where galaxy…
An extreme [OIII] emitter at : a low metallicity Lyman continuum source
S. de Barros, E. Vanzella, R. Amorín +16
[Abridged] We investigate the physical properties of a Lyman continuum emitter candidate at with photometric coverage from to MIPS 24m band and VIMOS/VLT and MOSFI…
Central enhancement of the nitrogen-to-oxygen abundance ratio in barred galaxies
E. Florido, A. Zurita, I. Perez +3
Bar-induced gas inflows towards the galaxy centres are recognized as a key agent for the secular evolution of galaxies. One immediate consequence is the accumulation of gas in the…
The extended HeII4686-emitting region in IZw18 unveiled: clues for peculiar ionizing sources
C. Kehrig, J. M. Vilchez, E. Perez-Montero +5
New integral field spectroscopy has been obtained for IZw18, the nearby lowest-metallicity galaxy considered our best local analog of systems forming at high-z. Here we report the…