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Green valley galaxies as a transition population in different environments
(Wiley Blackwell Publishing, Inc, 2018-02)
We present a comparative analysis of the properties of passive, star-forming and transition (green valley) galaxies in four discrete environments: field, groups, the outskirts and the core of X-ray clusters. We construct ...
Dust evolution in zoom-in cosmological simulations of galaxy formation
(Oxford University Press, 2021-05)
We present cosmological zoom-in hydrodynamical simulations for the formation of disc galaxies, implementing dust evolution and dust promoted cooling of hot gas. We couple an improved version of our previous treatment of ...
A unified scenario for the origin of spiral and elliptical galaxy structural scaling laws
(EDP Sciences, 2021-04-26)
Elliptical (E) and spiral (S) galaxies follow tight, but different, scaling laws that link their stellar masses, radii, and characteristic velocities. Mass and velocity, for example, scale tightly in spirals with little ...
Do galaxies die?: Different views from simulations and observations in the local Universe
(Wiley Blackwell Publishing, Inc, 2021-10)
For years, the extragalactic community has divided galaxies in two distinct populations. One of them, featuring blue colours, is actively forming stars, while the other is made up of 'red-and-dead' objects with negligible ...
Semi-empirical metallicity calibrations based on ultraviolet emission lines of type-2 AGNs
(Wiley Blackwell Publishing, Inc, 2019-05-08)
We derived two semi-empirical calibrations between the metallicity of the narrow-line region (NLR) of type-2 active galactic nuclei and the rest frame of the N V λ1240/He II λ1640, C43 = log[(C IV λ1549 + C III]λ1909)/He ...
Semi-analytic galaxies - II. Revealing the role of environmental and mass quenching in galaxy formation
(Wiley Blackwell Publishing, Inc, 2019-01)
We use the semi-analytic model of galaxy formation sag to study the relevance of mass and environmental quenching on satellite galaxies. We find that environmental processes dominate the star formation (SF) quenching of ...
Correlations between mass, stellar kinematics, and gas metallicity in eagle galaxies
(Oxford University Press, 2020-05)
The metallicity of star-forming gas in galaxies from the eagle (Evolution and Assembly of GaLaxies and their Environments) simulations increases with stellar mass. Here, we investigate whether the scatter around this ...
Following the crumbs: Statistical effects of ram pressure in galaxies
(Wiley Blackwell Publishing, Inc, 2020-02)
We analyse the presence of dust around galaxy group members through the reddening of background quasars. By taking into account quasar colour and their dependence on redshift and angular position, we derive mean quasar ...
Chemical abundances of Seyfert 2 AGNs, III : reducing the oxygen abundance discrepancy
(Wiley Blackwell Publishing, Inc, 2020-08)
We investigate the discrepancy between oxygen abundance estimations for narrow-line regions of active galactic nuclei (AGNs) type Seyfert 2 derived using direct estimations of the electron temperature (Te-method) and those ...
The mass-metallicity-kinematics relation of the stellar components of EAGLE galaxies
(Asociación Argentina de Astronomía, 2021-07)
In this work, we study the stellar mass -- stellar metallicity relation as a function of the morpho-kinematics of galaxies in {\sc{eagle}} cosmological simulations. According to our findings, at a given stellar mass ...