Bibcode
Camacho, I.
Referencia bibliográfica
American Astronomical Society, AAS Meeting #225, #223.07
Advertised on:
1
2015
Número de citas
0
Número de citas referidas
0
Descripción
The study of the early Universe relies on our ability to check our
models by analyzing the behaviour of astrophysical objects at conditions
close to those of the first epochs. Low-metallicity nearby galaxies with
young massive stars may be used as laboratories to study these objects
that have been proposed as active agents of the reionization of the
Universe and dominate the energy budget of galaxies.We present
observations and analyses of individual OB stars in the sub-SMC
metallicity galaxy Sextans A (which the lowest confirmed Fe abundance in
the Local Group, kaufer et al. 2004 & Hosek et al. 2014), obtained
with OSIRIS@GTC. This work extends the limits of this kind of studies to
unprecedented low metallicities.