Astrophysical: Radial velocity

  • Publication
    The radial velocity of the sun as a star and the solar cycle
    Radial velocity measurements of the sun as a star using a resonant scattering spectrometer have been obtained at Izaña (Tenerife) during long observing seasons...
  • Publication
    The Rotation Speed of the Companion Star in Aquila X-1
    We have obtained medium resolution spectra of the neutron star X-ray transient Aql X-1 during quiescence. We determine the spectral type of the companion star...
  • Publication
    The search for radial velocity variations in rapidly oscillating AP stars using the Fabry-Perot Interferometric Stellar Oscillation Spectrometer (FP-ISOS)
    Radial velocity measurements were taken of a group of Ap stars using an improved FP-ISOS. Observations were made using the 1.5m TCS on Tenerife in May 1987 and...
  • Publication
    The searches for Earth-like planets
    Several techniques are achieving nowadays the precision levels required to detect few-Earth-mass planets, but still a fruitful path needs to be explored in...
  • Publication
    The System Parameters of the Polars MR SER and ST LMi
    We obtain the Na I lambda 8183,8195 absorption line radial velocity curves for the polars ST LMi and MR Ser, from which we find the semi-amplitudes to be Kabs...
  • Publication
    The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets
    NASA's Transiting Exoplanet Survey Satellite (TESS) mission promises to improve our understanding of hot Jupiters by providing an all-sky, magnitude-limited...
  • Publication
    The TESS-Keck Survey. XI. Mass Measurements for Four Transiting Sub-Neptunes Orbiting K Dwarf TOI-1246
    Multiplanet systems are valuable arenas for investigating exoplanet architectures and comparing planetary siblings. TOI-1246 is one such system, with a...
  • Publication
    The TESS-Keck Survey. XVII. Precise Mass Measurements in a Young, High-multiplicity Transiting Planet System Using Radial Velocities and Transit Timing Variations
    We present a radial velocity (RV) analysis of TOI-1136, a bright Transiting Exoplanet Survey Satellite (TESS) system with six confirmed transiting planets, and...
  • Publication
    The TESS-Keck Survey: Science Goals and Target Selection
    The Kepler and TESS missions have demonstrated that planets are ubiquitous. However, the success of these missions heavily depends on ground-based radial...