Astrophysical: Techniques

  • Publication
    Convective line shifts for the Gaia RVS from the CIFIST 3D model atmosphere grid
    Context. To derive space velocities of stars along the line of sight from wavelength shifts in stellar spectra requires accounting for a number of second-order...
  • Publication
    Convective Wavelength Shifts in the Spectra of Late-Type Stars
    We present ultrahigh-resolution spectra for a set of nearby F-G-K stars on, or close to, the main sequence. The wavelength shifts of stellar lines relative to...
  • Publication
    Convectively Driven Sinks and Magnetic Fields in the Quiet-Sun
    We study the relation between mesogranular flows, convectively driven sinks and magnetic fields using high spatial resolution spectropolarimetric data acquired...
  • Publication
    Converging Flows in the Penumbra of a δ Sunspot
    Doppler velocities in the penumbra of a δ-configuration sunspot observed near the limb indicate flows that converge upon the line separating locally positive...
  • Publication
    Cool and data-driven: an exploration of optical cool dwarf chemistry with both data-driven and physical models
    Detailed chemical studies of F/G/K - or solar-type - stars have long been routine in stellar astrophysics, enabling studies in both Galactic chemodynamics and...
  • Publication
    Cool White Dwarfs Found in the UKIRT Infrared Deep Sky Survey
    We present the results of a search for cool white dwarfs in the United Kingdom InfraRed Telescope (UKIRT) Infrared Deep Sky Survey (UKIDSS) Large Area Survey...
  • Publication
    Cool White Dwarfs Identified in the Second Data Release of the UKIRT Infrared Deep Sky Survey
    We have paired the second data release of the Large Area Survey of the UKIRT Infrared Deep Sky Survey with the fifth data release of the Sloan Digital Sky...
  • Publication
    Coronal line forest AGN - II. Analysis of the spectral energy distribution
    Coronal-Line Forest Active Galactic Nuclei (CLiF AGN) are characterized by strong, high-ionization lines, which are in contrast to what is found in typical AGNs...
  • Publication
    CoRoT 101186644: A transiting low-mass dense M-dwarf on an eccentric 20.7-day period orbit around a late F-star. Discovered in the CoRoT lightcurves
    We present the study of the CoRoT transiting planet candidate 101186644, also named LRc01_E1_4780. Analysis of the CoRoT lightcurve and the HARPS spectroscopic...