Astrophysical: Techniques

  • Publication
    Multi-fibre optical spectroscopy of low-mass stars and brown dwarfs in Upper Scorpius
    Context. Knowledge of the mass function in open clusters constitutes one way to critically examine the formation mechanisms proposed to explain the existence of...
  • Publication
    Multi-instrument measurement campaign at Paranal in 2007. Characterization of the outer scale and the seeing of the surface layer
    Aims: Within the framework of site qualification for the future European large telescope E-ELT, a campaign of measurements was carried out for ten nights in...
  • Publication
    Multi-wavelength afterglow observations of the high redshift GRB 050730
    Context: .GRB 050730 is a long duration high-redshift burst (z=3.967) that was discovered by Swift. The afterglow shows variability and was well monitored over...
  • Publication
    Multiband calibration of an all-sky sample of AGN fields--extending Landolt's standards to V = 19
    We describe the first results of a program to extend the Landolt calibration standards to at least V=19 mag and to calibrate fields separated from the celestial...
  • Publication
    Multicolour photometry for exoplanet candidate validation
    Context. The TESS and PLATO missions are expected to find vast numbers of new transiting planet candidates. However, only a fraction of these candidates will be...
  • Publication
    Multiple reference star differential imaging with VLT/SPHERE: Influence of the reference frame selection and library
    Context. High-contrast imaging observations mostly rely on angular differential imaging, a successful technique for detecting point-sources, such as planets...
  • Publication
    Multiple Stellar Populations in 47 Tucanae
    We use Hubble Space Telescope (HST) and ground-based imaging to study the multiple populations of 47 Tucanae (47 Tuc), combining high-precision photometry with...
  • Publication
    Multiple stellar populations in Magellanic Cloud clusters - VI. A survey of multiple sequences and Be stars in young clusters
    The split main sequences (MSs) and extended MS turnoffs (eMSTOs) detected in a few young clusters have demonstrated that these stellar systems host multiple...
  • Publication
    Multiple stellar populations in Magellanic Cloud clusters – V. The split main sequence of the young cluster NGC 1866
    One of the most unexpected results in the field of stellar populations of the last few years is the discovery that some Magellanic Cloud globular clusters...