Publication type: Non-refereed

  • Publication
    Search for Light-Speed Anisotropies Using Compton Scattering of High-Energy Electrons
    Based on the high sensitivity of Compton scattering off ultra relativistic electrons, the possibility of anisotropies in the speed of light is investigated. The...
  • Publication
    Search for methane fluorescence in the transiting exoplanet XO-2 b
    The study of hot Jupiter planet atmospheres is giving rise to a surprising and intriguing diversity. Large differences in night/day contrast, chemical...
  • Publication
    Search for New Planetary Nebulae with the IPHAS Hα Survey
    The now completed INT photometric H-alpha Survey (IPHAS) is a valuable resource to detect planetary nebulae (PNe) in the Northern Galactic Plane. An area of...
  • Publication
    Search for Oscillations in Some Ap-Stars
    Photometric observations of some Ap stars with a 50 cm telescope have been carried out at Izaña (Tenerife) in February 1986. The stars observed were, generally...
  • Publication
    Search for Pulsations in H-Deficient Planetary-Nebula Nuclei
    We have observed with continuous photometry some hydrogen-deficient Planetary Nebula Nuclei (PNNs) with bipolar envelopes to search for pulsations, and to...
  • Publication
    Search for rapid oscillations in the Northern AP stars HD62140, HD81009 and HD22374
    High-speed photometric observations were performed of the Ap stars HD62140 (49 Cam), HD81009, and HD22374 for more than 60 hr in Oct. and Dec. 1986. Photometric...
  • Publication
    Search for rings and satellites around the temperate exoplanet CoRoT-9b
    The detection of the transiting extrasolar planet CoRoT-9b has just been reported (Deeg et al. 2010). With a semi-major axis of 0.41 astronomical unit on a...
  • Publication
    Search for rings and satellites around the temperate exoplanet CoRoT-9b (continued)
    CoRoT-9b is the first temperate transiting exoplanet. With a semi-major axis of 0.41 AU on a quasi-circular orbit, this is the first transiting planet far...
  • Publication
    Search for solar G modes
    Despite theoretical predictions on the existence of solar gravity oscillations (g modes), their detection is still marginal. The main reasons are their...