Astrophysical: Techniques

  • Publication
    The central parsecs of active galactic nuclei: challenges to the torus
    Type 2 active galactic nuclei (AGN) are by definition nuclei in which the broad-line region and continuum light are hidden at optical/UV wavelengths by dust...
  • Publication
    The Challenge of Wide-Field Transit Surveys: The Case of GSC 01944-02289
    Wide-field searches for transiting extrasolar giant planets face the difficult challenge of separating true transit events from the numerous false positives...
  • Publication
    The classification of frequencies in the γ Doradus/δ Scuti hybrid star HD 49434
    Hybrid stars of the γ Doradus and δ Scuti pulsation types have great potential for asteroseismic analysis to explore their interior structure. To achieve this...
  • Publication
    The compact multi-planet system GJ 9827 revisited with ESPRESSO★
    GJ 9827 is a bright, nearby K7V star orbited by two super-Earths and one mini-Neptune on close-in orbits. The system was first discovered using K2 data and then...
  • Publication
    The Complementary Roles of Interferometry and Asteroseismology in Determining the Mass of Solar-Type Stars
    How important is an independent diameter measurement for the determination of stellar parameters of solar-type stars? When coupled with seismic observables, how...
  • Publication
    The CORALIE survey for southern extrasolar planets. XVII. New and updated long period and massive planets
    Context. Since 1998, a planet-search program around main sequence stars within 50 pc in the southern hemisphere has been carried out with the CORALIE echelle...
  • Publication
    The CORALIE survey for southern extrasolar planets. XVIII. Three new massive planets and two low-mass brown dwarfs at greater than 5 AU separation
    Context. Since 1998, a planet-search around main sequence stars within 50 pc in the southern hemisphere has been underway with the CORALIE spectrograph at La...
  • Publication
    The CoRoT target HD 175726: an active star with weak solar-like oscillations
    Context: The CoRoT short runs give us the opportunity to observe a large variety of late-type stars through their solar-like oscillations. We report...
  • Publication
    The CoRoT-7 planetary system: two orbiting super-Earths
    We report on an intensive observational campaign carried out with HARPS at the 3.6 m telescope at La Silla on the star CoRoT-7. Additional simultaneous...