Astrofísicas: Técnicas

  • Publicación
    Stellar parameters of early-M dwarfs from ratios of spectral features at optical wavelengths
    Context. Low-mass stars have been recognised as promising targets in the search for rocky, small planets with the potential of supporting life. As a consequence...
  • Publicación
    Stellar population and kinematics of NGC 404
    Context. NGC 404 is a nearly face-on, nearby low-luminosity lenticular galaxy. Probing its characteristics provides a wealth of information on the details of...
  • Publicación
    Stellar populations in the Carina dSph galaxy.
    The small and elusive Carina dSph still presents many open questions concerning its stellar populations and dynamical evolution. It presents a unique star...
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    Stellar Populations of Elliptical Galaxies in Virgo Cluster. I. The Data and Stellar Population Analysis
    We have determined spectroscopic ages of elliptical galaxies in the Virgo Cluster using spectra of very high signal-to-noise ratio (S/N>100 Å-1). We observed...
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    Stellar spectral models compared with empirical data
    The empirical MILES stellar library is used to test the accuracy of three different, state-of-the-art, theoretical model libraries of stellar spectra. These...
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    Stellar spectral-type (mass) dependence of the dearth of close-in planets around fast-rotating stars. Architecture of Kepler confirmed single-exoplanet systems compared to star-planet evolution models
    In 2013 a dearth of close-in planets around fast-rotating host stars was found using statistical tests on Kepler data. The addition of more Kepler and...
  • Publicación
    STEPAR: an automatic code to infer stellar atmospheric parameters
    Context. STEPAR is an automatic code written in Python 3.X designed to compute the stellar atmospheric parameters Teff, log g, [Fe/H], and ξ of FGK-type stars...
  • Publicación
    STEPARSYN: A Bayesian code to infer stellar atmospheric parameters using spectral synthesis
    Context. STEPARSYN is an automatic code written in Python 3.X designed to infer the stellar atmospheric parameters T eff, log g, and [Fe/H] of FGKM-type stars...
  • Publicación
    Stokes inversion based on convolutional neural networks
    Context. Spectropolarimetric inversions are routinely used in the field of solar physics for the extraction of physical information from observations. The...