Tipo de publicación: Con árbitro

  • Publicación
    A search for transiting planets around hot subdwarfs. I. Methods and performance tests on light curves from Kepler, K2, TESS, and CHEOPS
    Context. Hot subdwarfs experienced strong mass loss on the red giant branch (RGB) and are now hot and small He-burning objects. These stars constitute excellent...
  • Publicación
    A Search for Very High Energy Gamma-Ray Emission from Scorpius X-1 with the Magic Telescopes
    The acceleration of particles up to GeV or higher energies in microquasars has been the subject of considerable theoretical and observational efforts in the...
  • Publicación
    A Search for Very Low Mass Stars and Brown Dwarfs in the Young sigma Orionis Cluster
    We present a CCD-based photometric survey covering 870 arcmin^2 in a young stellar cluster around the young multiple star sigma Orionis. Our survey-limiting R...
  • Publicación
    A Search for Warm Neutral Gas Associated with the Giant HII Region NGC 604
    The characteristics of the halo gas and its interaction with the galactic disk in spiral galaxies are poorly known; this is particularly true for the warm...
  • Publicación
    A Second Planet Transiting LTT 1445A and a Determination of the Masses of Both Worlds
    LTT 1445 is a hierarchical triple M-dwarf star system located at a distance of 6.86 pc. The primary star LTT 1445A (0.257 M ⊙) is known to host the transiting...
  • Publicación
    A Second Terrestrial Planet Orbiting the Nearby M Dwarf LHS 1140
    LHS 1140 is a nearby mid-M dwarf known to host a temperate rocky super-Earth (LHS 1140 b) on a 24.737-day orbit. Based on photometric observations by MEarth and...
  • Publicación
    A second-order approximation to equatorial null geodesics in the Kerr metric - Application to light deflection in eclipsing compact binaries
    We present a second-order analytical expansion of null equatorial geodesics in the Kerr metric. The equations developed are applied to the study of light...
  • Publicación
    A Second-order Moment of Microlensing Variability as a Novel Tool to Constrain Source Emission Size or Discrete Lens Demographics in Extragalactic Research
    We define a second-order moment of the observational differential microlensing curves that can be used to impose constraints on physical properties of lensed...
  • Publicación
    A seesaw model for large neutrino masses in concordance with cosmology
    Cosmological constraints on the sum of the neutrino masses can be relaxed if the number density of active neutrinos is reduced compared to the standard scenario...