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Browsing by Author "Vincenzo, Fiorenzo"
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Chemical evolution of classical and ultra-faint dwarf spheroidal galaxies
Vincenzo, Fiorenzo; Matteucci, Francesca; Vattakunnel, Shaji; Lanfranchi, Gustavo A. (2014-07-11) -
The effects of the IMF on the chemical evolution of elliptical galaxies
Masi, Carlo Maria De; Matteucci, Francesca; Vincenzo, Fiorenzo (2018-03-11)We describe the use of our chemical evolution model to reproduce the abundance patterns observed in a catalogue of elliptical galaxies from the Sloan Digital Sky Survey Data Release 4. The model assumes ellipticals form ... -
Evolution of N/O ratios in galaxies from cosmological hydrodynamical simulations
Vincenzo, Fiorenzo; Kobayashi, Chiaki (2018-07-21)We study the redshift evolution of the gas-phase O/H and N/O abundances, both (i) for individual interstellar medium (ISM) regions within single spatially resolved galaxies and (ii) when dealing with average abundances in ... -
Extragalactic archaeology with the C, N, and O chemical abundances
Vincenzo, Fiorenzo; Kobayashi, Chiaki (2018-02-09)We predict how the C, N, and O abundances within the interstellar medium of galaxies evolve as functions of the galaxy star formation history (SFH). We adopt a hydrodynamical cosmological simulation, focusing on three ... -
He abundances in disc galaxies. I. Predictions from cosmological chemodynamical simulations
Vincenzo, Fiorenzo; Miglio, Andrea; Kobayashi, Chiaki; Mackereth, J. Ted; Montalban, Josefina (2019-10-01)We investigate how the stellar and gas-phase He abundances evolve as a function of time within simulated star-forming disc galaxies with different star formation histories. We make use of a cosmological chemodynamical ... -
The IGIMF and other IMFs in dSphs: : the case of Sagittarius
Vincenzo, Fiorenzo; Matteucci, Francesca; Recchi, Simone; Calura, Francesco; McWilliam, Andrew; Lanfranchi, Gustavo A. (2015-05-11)We have studied the effects of various initial mass functions (IMFs) on the chemical evolution of the Sagittarius dwarf galaxy (Sgr). In particular, we tested the effects of the integrated galactic initial mass function ... -
The KLEVER survey: nitrogen abundances at z ∼ 2 and probing the existence of a fundamental nitrogen relation
Hayden-Pawson, Connor; Curti, Mirko; Maiolino, Roberto; Cirasuolo, Michele; Belfiore, Francesco; Cappellari, Michele; Concas, Alice; Cresci, Giovanni; Cullen, Fergus; Kobayashi, Chiaki; Mannucci, Filippo; Marconi, Alessandro; Meneghetti, Massimo; Mercurio, Amata; Peng, Yingjie; Swinbank, Mark; Vincenzo, Fiorenzo (2022-05-30)We present a comparison of the nitrogen-to-oxygen ratio (N/O) in 37 high-redshift galaxies at z ∼2 taken from the KMOS Lensed Emission Lines and VElocity Review (KLEVER) Survey with a comparison sample of local galaxies, ... -
Lighting up stars in chemical evolution models : the CMD of Sculptor
Vincenzo, Fiorenzo; Matteucci, Francesca; De Boer, Thomas J L; Cignoni, Michele; Tosi, Monica (2016-08-01)We present a novel approach to draw the synthetic colour–magnitude diagram (CMD) of galaxies, which can provide – in principle – a deeper insight in the interpretation and understanding of current observations. In particular, ... -
Modern yields per stellar generation: : the effect of the IMF
Vincenzo, Fiorenzo; Matteucci, Francesca; Belfiore, Francesco; Maiolino, Roberto (2016-02-01)Gaseous and stellar metallicities in galaxies are nowadays routinely used to constrain the evolutionary processes in galaxies. This requires the knowledge of the average yield per stellar generation, yZ, i.e. the quantity ... -
Nitrogen and oxygen abundances in the Local Universe
Vincenzo, Fiorenzo; Belfiore, Francesco; Maiolino, Roberto; Matteucci, Francesca; Ventura, Paolo (2016-06-01)We present chemical evolution models aimed at reproducing the observed (N/O) versus (O/H) abundance pattern of star-forming galaxies in the Local Universe. We derive gas-phase abundances from Sloan Digital Sky Survey (SDSS) ... -
On the [α/Fe]-[Fe/H] relations in early-type galaxies
Vincenzo, Fiorenzo; Kobayashi, Chiaki; Taylor, Philip (2018-10-01)We study how the predicted [α/Fe]-[Fe/H] relations in early-type galaxies vary as functions of their stellar masses, ages, and stellar velocity dispersions, by making use of cosmological chemodynamical simulations with ... -
A simple and general method for solving detailed chemical evolution with delayed production of iron and other chemical elements
Vincenzo, Fiorenzo; Matteucci, Francesca; Spitoni, Emanuele (2017-04-21)We present a theoretical method for solving the chemical evolution of galaxies by assuming an instantaneous recycling approximation for chemical elements restored by massive stars and the delay time distribution formalism ... -
Stellar migrations and metal flows -- Chemical evolution of the thin disc of a simulated Milky Way analogous galaxy
Vincenzo, Fiorenzo; Kobayashi, Chiaki (2020-07-01)In order to understand the roles of metal flows in galaxy formation and evolution, we analyse our self-consistent cosmological chemo-dynamical simulation of a Milky Way like galaxy during its thin-disc phase. Our simulated ... -
Zoom-in cosmological hydrodynamical simulation of a star-forming barred, spiral galaxy at redshift z=2
Vincenzo, Fiorenzo; Kobayashi, Chiaki; Yuan, Tiantian (2019-07-26)We present gas and stellar kinematics of a high-resolution zoom-in cosmological chemodynamical simulation, which fortuitously captures the formation and evolution of a star-forming barred spiral galaxy, from redshift ...