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...
The small and elusive Carina dSph still presents many open questions concerning its stellar populations and dynamical evolution. It presents a unique star...
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...
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...
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...
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...
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...
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...
Storms or systematics? The changing secondary eclipse depth of WASP-12b
WASP-12b is one of the most well-studied transiting exoplanets, as its highly inflated radius and its 1.1 d orbit around a G0-type star make it an excellent...