Astrofísicas: Función de luminosidad

  • Charla
    Optical and infrared studies of Galactic open clusters
    In the first (optical) part, we present our recent results on mass and luminosity function of Galactic open clusters, a new statistical study based on the ASCC...
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    Optical and Near-infrared Spectra of σ Orionis Isolated Planetary-mass Objects
    We have obtained low-resolution optical (0.7–0.98 μm) and near-infrared (1.11–1.34 μm and 0.8–2.5 μm) spectra of 12 isolated planetary-mass candidates (J = 18.2...
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    Pleiades low-mass brown dwarfs: the cluster L dwarf sequence
    Aims.We present a search for low-mass brown dwarfs in the Pleiades open cluster. The identification of Pleiades members fainter and cooler than those currently...
  • Publicación
    Probing the Upper Scorpius mass function in the planetary-mass regime
    We present the results of a deep ZYJ near-infrared survey of 13.5 deg2 in the Upper Scorpius (USco) OB association. We photometrically selected ˜100 cluster...
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    Proper motions of USco T-type candidates
    We present new z- and H-band photometry and proper motion measurements for the five candidate very-low-mass T-type objects we recently proposed to be members of...
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    Sampling methods for stellar masses and the mmax-Mecl relation in the starburst dwarf galaxy NGC 4214
    It has been claimed in the recent literature that a non-trivial relation between the mass of the most-massive star, mmax, in a star cluster and its embedded...
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    Satellite galaxies around present-day massive ellipticals
    Using the spectroscopic New York University Value-Added Galaxy Catalogue and the photometric photo-z catalogues of the Sloan Digital Sky Survey Data Release 7...
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    Search for Blue Compact Dwarf Galaxies During Quiescence
    Blue compact dwarf (BCD) galaxies are metal-poor systems going through a major starburst that cannot last for long. We have identified galaxies which may be...
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    Seventeen new very low-mass members in Taurus. The brown dwarf deficit revisited
    Recent studies of the substellar population in the Taurus cloud have revealed a deficit of brown dwarfs compared to the Trapezium cluster population. However...