154 citations · 200 across the 10 of their papers we have counts for
11 papers
MEGARA Stellar Spectral Library. Second Release
E. Carrasco, M. Lira-Franco, M. L. García-Vargas +6
We present the second release of the MEGARA spectral library, MEGASTAR, which now includes all spectra collected during ten observing semesters at the Gran Telescopio CANARIAS. Thi…
Chemical evolution models: the role of type Ia supernovae in the -elements over Iron relative abundances and their variations in time and space
O. Cavichia, M. Mollá, J. J. Bazán +6
The role of type Ia supernovae (SN Ia), mainly the Delay Time Distributions (DTDs) determined by the binary systems, and the yields of elements created by different explosion mecha…
The multi-zone chemical evolution of the Galactic bulge: predicting abundances for different radial zones
Oscar Cavichia, Mercedes Mollá, Juanjo J. Bazán
Due to its proximity, the stellar populations of the Galactic bulge (GB) can be resolved and can be studied in detail. This allows tracing the bulge metallicity distribution functi…
MEGASTAR (III). Stellar parameters and data products for DR1 late-type stars
M. Mollá, M. L. García-Vargas, I. Millán-Irigoyen +5
MEGARA is the optical integral field and multi-object spectrograph at the Gran Telescopio Canarias. We have created MEGASTAR, an empirical library of stellar spectra obtained using…
Stellar Populations in type Ia supernova host galaxies at intermediate-high redshift: Star formation and metallicity enrichment histories
I. Millan-Irigoyen, M. G. del Valle-Espinosa, R. Fernández-Aranda +5
We present a summary of our project that studies galaxies hosting type Ia supernova (SN Ia) at different redshifts. We present Gran Telescopio de Canarias (GTC) optical spectroscop…
Predicting interstellar radiation fields from chemical evolution models
Mario Romero, Pablo Corcho-Caballero, Iker Millán-Irigoyen +2
We present a self-consistent prediction of the interstellar radiation field (ISRF), from the extreme ultraviolet (EUV) to sub-mm range, based on two chemical evolution models of a…
MEGARA-GTC Stellar Spectral Library (I)
M. L. García-Vargas, E. Carrasco, M. Mollá +11
MEGARA (Multi Espectr{ó}grafo en GTC de Alta Resoluci{ó}n para Astronom{\'ı}a) is an optical (3650~--~9750Å), fibre-fed, medium-high spectral resolution (R = 6000, 12000, 20000) in…
2D-Galactic chemical evolution: the role of the spiral density wave
Mercedes Mollá, Sheillah Wekesa, Oscar Cavichia +6
We present a 2-dimensional chemical evolution code applied to a Milky Way type galaxy, incorporating the role of spiral arms in shaping azimuthal abundance variations, and confront…
Galactic Chemical Evolution
M. Mollá, O. Cavichia, R. da Costa +2
We analyze the evolution of oxygen abundance radial gradients resulting from our chemical evolution models calculated with different prescriptions for the star formation rate (SFR)…
PopStar I: Evolutionary synthesis models description
M. Molla, M. L. Garcia-Vargas, A. Bressan
We present new evolutionary synthesis models for Simple Stellar Populations for a wide range of ages and metallicities. The models are based on the Padova isochrones. The core of t…
The H density within spiral and irregular galaxies at high redshift: estimating CO detection limits
Mercedes Mollá, Eduardo Hardy, '{A}ngeles I. Díaz
We have computed a grid of chemical evolution models for a large set of spiral and irregular theoretical galaxies of different total mass. In our models, the gas phase has two comp…