Zobrazeno 1 - 10
of 240
pro vyhledávání: '"Recchi, S."'
Primordial clouds are supposed to host the so-called population III stars. These stars are very massive and completely metal-free. The final stage of the life of population III stars with masses between 130 and 260 solar masses is a very energetic hy
Externí odkaz:
http://arxiv.org/abs/1708.05053
Dwarf galaxies generally follow a mass-metallicity (MZ) relation, where more massive objects retain a larger fraction of heavy elements. Young tidal dwarf galaxies (TDGs), born in the tidal tails produced by interacting gas-rich galaxies, have been t
Externí odkaz:
http://arxiv.org/abs/1504.02473
Photoionization modelling allows to follow the transport, the emergence, and the absorption of photons taking into account all important processes in nebular plasmas. Such modelling needs the spatial distribution of density, chemical abundances and t
Externí odkaz:
http://arxiv.org/abs/1503.04195
Autor:
Recchi, S., Kroupa, P.
Standard analytical chemical evolution modelling of galaxies has been assuming the stellar initial mass function (IMF) to be invariant and fully sampled allowing fractions of massive stars to contribute even in dwarf galaxies with very low star forma
Externí odkaz:
http://arxiv.org/abs/1411.0318
The physical properties of the so-called Ostriker isothermal, non-rotating filament have been classically used as benchmark to interpret the stability of the filaments observed in nearby clouds. However, such static picture seems to contrast with the
Externí odkaz:
http://arxiv.org/abs/1408.0007
We present high-resolution simulations of tidal dwarf galaxies (TDG) to investigate their early chemo-dynamical evolution and test their survivability. In this work the simulation setup is introduced and the response of TDGs to self-consistent star f
Externí odkaz:
http://arxiv.org/abs/1311.2932
Autor:
Recchi, S.
In this review I give a summary of the state-of-the-art for what concerns the chemo-dynamical numerical modelling of galaxies in general and of dwarf galaxies in particular. In particular, I focus my attention on (i) initial conditions; (ii) the equa
Externí odkaz:
http://arxiv.org/abs/1310.4932
The aim of this paper is to quantify the amplitude of the predicted plateau in [alpha/Fe] ratios associated with the most metal-poor stars of a galaxy. We assume that the initial mass function in galaxies is steeper if the star formation rate (SFR) i
Externí odkaz:
http://arxiv.org/abs/1310.4497
The physical properties of the so-called Ostriker isothermal filament (Ostriker 1964) have been classically used as benchmark to interpret the stability of the filaments observed in nearby clouds. However, recent continuum studies have shown that the
Externí odkaz:
http://arxiv.org/abs/1308.5792
We compute the Type Ia supernova rates in typical elliptical galaxies by varying the progenitor models for Type Ia supernovae. To do that a formalism which takes into account the delay distribution function (DTD) of the explosion times and a given st
Externí odkaz:
http://arxiv.org/abs/1308.0137