Publication type: Refereed

  • Publication
    Brown Dwarf Disks at Ages of 5-10 Myr
    We present Spitzer/IRAC and MIPS 24 μm observations for 28 brown dwarfs in the Upper Scorpius (UppSco) region. We find a disk fraction of 10.7%+8.7% -3.3%. One...
  • Publication
    Brown dwarfs and very low mass stars in the Praesepe open cluster: a dynamically unevolved mass function?
    Context. Determination of the mass functions of open clusters of different ages allows us to infer the efficiency with which brown dwarfs are evaporated from...
  • Publication
    Brown dwarfs and very low-mass stars in the Pleiades cluster: a deep wide-field imaging survey
    We have performed a deep, wide-field imaging survey of the Pleiades cluster (Melotte 22) in the R and I-bands to search for very low-mass stars and brown dwarfs...
  • Publication
    Brown Dwarfs in the Pleiades Cluster Confirmed by the Lithium Test
    We present Keck Observatory 10 m telescope spectra of the two Pleiades brown dwarfs, Teide 1 and Calar 3, showing a clear detection of the Li 670.8 nm resonance...
  • Publication
    Brown dwarfs in the Pleiades cluster. II. J, H and K photometry.
    We have obtained near-infrared observations of some of the faintest objects so far known towards the Pleiades young stellar cluster, with the purpose of...
  • Publication
    Brown dwarfs in the Pleiades cluster. III. A deep IZ survey
    We present the results of a deep CCD-based IZ photometric survey of a ~ 1 deg(2) area in the central region of the Pleiades Galactic open cluster. The magnitude...
  • Publication
    Brown dwarfs in the Pleiades cluster: a CCD-based R, I survey.
    We have obtained deep CCD R and I mosaic imaging of 578 arcmin^2^ within 1°.5 of the Pleiades' center - reaching a completeness magnitude I = 19.5 - with the...
  • Publication
    BS Indi: An enigmatic object in the Tucana association
    BS Ind (=HD 202947) is a young K0V star in the Tucana association. Photometric observations with the Hipparcos satellite show an eclipse-like light-curve with...
  • Publication
    BUBBLY: a method for detecting and characterizing interstellar bubbles using Fabry-Perot spectroscopy
    We present a new method for the detection and characterization of expansion in galaxy discs based on Hα Fabry-Perot spectroscopy, taking advantage of the high...