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Leaving the dark ages with AMIGA
Alberto Manrique, Eduard Salvador-Solé, Enric Juan +6
We present an Analytic Model of Intergalactic-medium and GAlaxy evolution since the dark ages. AMIGA is in the spirit of the popular semi-analytic models of galaxy formation, altho…
Binary stars and the UVX in early type galaxies
Fabiola Hernández-Pérez, Gustavo Bruzual
We use the Hernández-Pérez Bruzual (2013) HB13 stellar population synthesis models to study the rôle of interacting binary pairs as progenitors of EHB stars. We assemble a sam…
Consequences of bursty star formation on galaxy observables at high redshifts
Alberto Domínguez, Brian Siana, Alyson M. Brooks +4
The star formation histories (SFHs) of dwarf galaxies are thought to be \emph{bursty}, with large -- order of magnitude -- changes in the star formation rate on timescales similar…
The stellar initial mass function at 0.9<z<1.5
I. Martín-Navarro, P. G. Pérez-González, I. Trujillo +12
We explore the stellar initial mass function (IMF) of a sample of 49 massive quiescent galaxies (MQGs) at 0.9z1.5. We base our analysis on intermediate resolution spectro-pho…
Variations of the Initial Mass Function in Semi-Analytical models
Fabio Fontanot
Deviations from a universal, MW-like, Stellar Initial Mass Function (IMF) have been reported for distant galaxies, although the physical reason behind the observed variations is st…
Chemo-Archaeological Downsizing in a Hierarchical Universe: Impact of a Top Heavy IGIMF
I. D. Gargiulo, S. A. Cora, N. D. Padilla +6
We make use of a semi-analytical model of galaxy formation to investigate the origin of the observed correlation between [a/Fe] abundance ratios and stellar mass in elliptical gala…