Ángeles Díaz | Universidad Autónoma de Madrid (original) (raw)

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Papers by Ángeles Díaz

arXiv (Cornell University), Apr 2, 2024

Monthly Notices of the Royal Astronomical Society, Sep 30, 2010

Monthly Notices of the Royal Astronomical Society, Nov 1, 1982

Monthly Notices of the Royal Astronomical Society, Dec 17, 2020

arXiv (Cornell University), Oct 1, 1900

Monthly Notices of the Royal Astronomical Society, 2018

Astronomy & Astrophysics, 2019

Context. Integral field spectroscopy (IFS) provides detailed information about galaxy kinematics ... more Context. Integral field spectroscopy (IFS) provides detailed information about galaxy kinematics at high spatial and spectral resolution, and the disentanglement of the gaseous and stellar components is a key step in the analysis of the data. Aims. We study how the use of several stellar-subtraction methods and line fitting approaches can affect the derivation of the main kinematic parameters (velocity and velocity dispersion fields) of the ionized gas component. Methods. The target of this work is the nearby galaxy NGC 2906, observed with the MUSE instrument at the Very Large Telescope (VLT). A sample of twelve spectra is selected from the inner (nucleus) and outer (spiral arms) regions, characterized by different ionization mechanisms. We compare three different methods to subtract the stellar continuum (FIT3D, STARLIGHT and pPXF), combined with one of the following stellar libraries: MILES, STELIB and GRANADA+MILES. Results. The choice of the stellar-subtraction method is the mos...

Monthly Notices of the Royal Astronomical Society, 1984

Proceedings of the International Astronomical Union, 2016

We review the state of our chemical evolution models for spiral and low mass galaxies. We analyze... more We review the state of our chemical evolution models for spiral and low mass galaxies. We analyze the consequences of using different stellar yields, infall rate laws and star formation prescriptions in the time/redshift evolution of the radial distributions of abundances, and other quantities as star formation rate or gas densities, in the Milky Way Galaxy; In particular we will study the evolution of the oxygen abundance radial gradient analyzing its relation with the ratio SFR/infall. We also compare the results with our old chemical evolution models, cosmological simulations and with the existing data, mainly with the planetary nebulae abundances.