Publication type: Refereed

  • Publication
    The structure of the interstellar gas towards stars in the globular cluster NGC 6541
    Observations are presented of high resolution interstellar Na I D and K I (lambda 7699 Angstroms) line profiles towards 7 stars in the globular cluster NGC 6541...
  • Publication
    The structure of the outer Galactic disc as revealed by IPHAS early A stars
    This study is an investigation of the stellar density profile of the Galactic disc in the anticentre direction. We select over 40000 early A stars from INT/WFC...
  • Publication
    The sub-stellar birth rate from UKIDSS
    We present a new sample of mid-L to mid-T dwarfs with effective temperatures of 1100-1700 K selected from the UKIDSS Large Area Survey (LAS) and confirmed with...
  • Publication
    The substellar mass function in the central region of the open cluster Praesepe from deep LBT observations
    Context. Studies of the mass function (MF) of open clusters of different ages allow us to probe the efficiency with which brown dwarfs evaporate from clusters...
  • Publication
    The Substellar Mass Function in σ Orionis
    We combine results from imaging searches for substellar objects in the σ Orionis cluster and follow-up photometric and spectroscopic observations to derive a...
  • Publication
    The substellar mass function in σ Orionis. II. Optical, near-infrared and IRAC/Spitzer photometry of young cluster brown dwarfs and planetary-mass objects
    Aims:We investigate the mass function in the substellar domain down to a few Jupiter masses in the young σ Orionis open cluster (3±2 Ma, d = 360^+70_-60 pc)...
  • Publication
    The Substellar Population of σ Orionis: A Deep Wide Survey
    We present a deep I, Z photometric survey covering a total area of 1.12 deg2 of the σ Orionis cluster and reaching completeness magnitudes of I = 22 and Z = 21...
  • Publication
    The SUMO project I. A survey of multiple populations in globular clusters
    We present a general overview and the first results of the SUMO project (a SUrvey of Multiple pOpulations in Globular Clusters). The objective of this survey is...
  • Publication
    The Sunrise Mission
    The first science flight of the balloon-borne Sunrise telescope took place in June 2009 from ESRANGE (near Kiruna/Sweden) to Somerset Island in northern Canada...