Using ultra-deep imaging (μ g = 30.4 mag arcsec -2; 3σ, 10″ × 10″), we probed the surroundings of the first galaxy "lacking" dark matter (DM) KKS2000[04] (NGC...
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PublicaciónA Disk and No Signatures of Tidal Distortion in the Galaxy "Lacking" Dark Matter NGC 1052-DF2
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PublicaciónA distance of 13 Mpc resolves the claimed anomalies of the galaxy lacking dark matter
The claimed detection of a diffuse galaxy lacking dark matter represents a possible challenge to our understanding of the properties of these galaxies and...
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PublicaciónA Double Main Sequence in the Globular Cluster NGC 6397
High-precision multi-band Hubble Space Telescope (HST) photometry reveals that the main sequence of the globular cluster NGC 6397 splits into two components...
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PublicaciónA dwarf-dwarf merger and dark matter core as a solution to the globular cluster problems in the Fornax dSph
The five globular clusters (GCs) of the Fornax dwarf spheroidal galaxy are puzzling for two reasons; the mass in GCs is high with respect to the galaxy's old...
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PublicaciónA giant exoplanet orbiting a very-low-mass star challenges planet formation models
Surveys have shown that super-Earth and Neptune-mass exoplanets are more frequent than gas giants around low-mass stars, as predicted by the core accretion...
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PublicaciónA massive open cluster hiding in full sight
Obscuration and confusion conspire to limit our knowledge of the inner Milky Way. Even at moderate distances, the identification of stellar systems becomes...
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PublicaciónA method to deconvolve stellar profiles. The non-rotating line utilizing Gaussian sum approximation
Context. Currently, one of the standard procedures used to determine stellar and wind parameters of massive stars involves to comparing the observed spectral...
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PublicaciónA mid-infrared study of H II regions in the Magellanic Clouds: N88 A and N160 A
Aims: To show the importance of high-spatial resolution observations of H II regions when compared with observations obtained with larger apertures such as ISO...
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PublicaciónA new and Homogeneous metallicity scale for Galactic classical Cepheids. II. Abundance of iron and α elements
Context. Classical Cepheids are the most popular distance indicators and tracers of young stellar populations. The key advantage is that they are bright and...