Talk format: Seminar

  • Talk
    Fifty years of secular evolution in galaxies: where do we stand?
    In this talk I will present my view on what we know and what we don't know about the so-called secular evolution processes in galaxies. I will focus on the...
  • Talk
    Finding extra-solar planets in the presence of stellar jitter
    The RV method is responsible for discovering the majority of planets that orbit stars other than our Sun. However, one problem with this technique is that...
  • Talk
    Finding the double sunsets: close binary stars, large spectroscopic surveys
    I will discuss our present knowledge of the statistics of stellar multiplicity (the multiplicity fraction and the distribution of periods, mass ratios, and...
  • Talk
    Fingerprints of our Neighbors: A Spectral Library for Characterizing the Coldest Stars, Brown Dwarfs and Extrasolar Planets.
    Over the past two decades, advances in infrared instrumentation have allowed us to identify a vast and previously unseen population of low-temperature stars...
  • Talk
    First on-sky results with the CANARY multi-object AO demonstrator on the WHT
    CANARY is a technical demonstrator for the proposed EAGLE instrument for European ELT. EAGLE will have twenty Integral Field Units patrolling a 5 arcminute...
  • Talk
    First results from the Hubble and Spitzer Frontier Fields - Pushing Hubble to its limits to study the early Universe
    At the end of 2013, the Hubble Space Telescope has started its last flagship program : the "Frontier Fields". In the framework of this project, three of the...
  • Talk
    Flares: highly energetic explosions on the Sun
    Flares are among the most energetic magnetic solar phenomena. They are often accompanied by ejections of charged particles, which have a direct influence on the...
  • Talk
    Formation and evolution of double-barred galaxies
    The general picture of galaxy formation and evolution includes bars as the main drivers of the internal secular processes affecting the lifetime of disc...
  • Talk
    Formation history of old open clusters constrained by detailed asteroseismic analysis of red giant stars observed by Kepler
    Stars originate by the gravitational collapse of a turbulent molecular cloud of a diffuse medium, and are often observed to form clusters. Stellar clusters...