41 citations · 101 across the 7 of their papers we have counts for
7 papers
Sulphur abundances in star-forming regions from optical emission lines: A new approach based on photoionization models consistent with the direct method
Enrique Pérez-Montero, Borja Pérez-Díaz, José M. Vílchez +5
The derivation of sulphur chemical abundances in the gas-phase of star-forming galaxies is explored in this work, using the emission lines produced in these regions in the optical…
Deriving the abundance distribution of HII galaxies using sulphur as tracer: Exploring the high-metallicity end
Marta Gavilán, Ángeles I. Díaz, Sandra Zamora
The main objective of this work is to derive the distribution of the the metal content of HII galaxies using sulphur as an abundance tracer. This increases the metallicity range th…
Galactic Chemical Evolution: Stellar Yields and the Initial Mass Function
Mercedes Mollá, Oscar Cavichia, Marta Gavilán +1
We present a set of 144 galactic chemical evolution models applied to a Milky Way analogue, computed using four sets of low and intermediate star nucleosynthetic yields, six massiv…
Nature or nurture? Clues from the distribution of specific star formation rates in SDSS galaxies
Javier Casado, Yago Ascasibar, Marta Gavilán +4
This work investigates the main mechanism(s) that regulate the specific star formation rate (SSFR) in nearby galaxies, cross-correlating two proxies of this quantity -- the equival…
Understanding chemical evolution in resolved galaxies -- I The local star fraction-metallicity relation
Y. Ascasibar, M. Gavilán, N. Pinto +3
This work studies the relation between gas-phase oxygen abundance and stellar-to-gas fraction in nearby galaxies. We first derive the theoretical prediction, and argue that this re…
The chemical case for no winds in dwarf irregular galaxies
Marta Gavilán, Yago Ascasíbar, Mercedes Mollá +1
We argue that isolated gas-rich dwarf galaxies -- in particular, dwarf irregular (dIrr) galaxies -- do not necessarily undergo significant gas loss. Our aim is to investigate wheth…
The N/O evolution on galaxies:the role played by the star formation history
Mercedes Mollá, José M. Vílchez, Angeles I. Díaz +1
We study the evolution of nitrogen resulting from a set of spiral and irregular galaxy models computed for a large number of input mass radial distributions and with various star f…