Publication type: Refereed

  • Publication
    The role of the chromospheric magnetic canopy in the formation of a sunspot penumbra
    Context. While it is conjectured that a chromospheric canopy plays a role in penumbra formation, it has been difficult to find observational evidence of the...
  • Publication
    The RoPES project with HARPS and HARPS-N. I. A system of super-Earths orbiting the moderately active K-dwarf HD 176986
    We report the discovery of a system of two super-Earths orbiting the moderately active K-dwarf HD 176986. This work is part of the RoPES RV program of G- and K...
  • Publication
    The ROSAT International X-ray/Optical Survey (RIXOS): source catalogue
    We describe the ROSAT International X-ray/Optical Survey (RIXOS), a medium-sensitivity survey and optical identification of X-ray sources discovered in ROSAT...
  • Publication
    The ROSAT UK Medium Sensitivity Survey: optical identification and relation to X-ray spectral properties
    We present the first results on the optical identification of 89 sources with S(0.5-2 keV)>=1.7x10^-14 erg s^-1 cm^-2 detected in eight ROSAT Position Sensitive...
  • Publication
    The Rossiter-McLaughlin effect revolutions: an ultra-short period planet and a warm mini-Neptune on perpendicular orbits
    Comparisons of the alignment of exoplanets with a common host star and each other can be used to distinguish among concurrent evolution scenarios for the star...
  • Publication
    The Rotation of the Deep Solar Layers
    From the analysis of low-order GOLF+MDI sectoral modes (l
  • Publication
    The rotation of the solar core
    The solar p-mode spectrum of very low l has already been measured with high accuracy for a sufficiently long period of time to permit the search for solar cycle...
  • Publication
    The rotation period of a very low-mass star in alpha Persei
    Light curves of the very low-mass member of the alpha Persei open cluster, AP J0323+4853, obtained during two different observing runs in 1994 and 1995, display...
  • Publication
    The Rotation Period of C/1995 01 (Hale-Bopp)
    C/1995 O1 (Hale-Bopp) was observed in daylight on 16 days between 1997 April 1 and 1997 April 28, five of which had long time sequences (up to 10 hr of data)...