Publication type: Refereed

  • Publication
    The Rapid Decay of the Optical Emission from GRB 980326 and Its Possible Implications
    We report the discovery of the optical counterpart to GRB 980326. Its rapid optical decay can be characterized by a power law with exponent - 2.10+/-0.13 and a...
  • Publication
    The rapidly oscillating Ap star HD 99563 and its distorted dipole pulsation mode
    We undertook a time-series photometric multisite campaign for the rapidly oscillating Ap (roAp) star HD 99563 and also acquired mean light observations over...
  • Publication
    The rates and modes of gas accretion on to galaxies and their gaseous haloes
    We study the rate at which gas accretes on to galaxies and haloes and investigate whether the accreted gas was shocked to high temperatures before reaching a...
  • Publication
    The ratio of pattern speeds in double-barred galaxies
    We have obtained two-dimensional velocity fields in the ionized gas of a set of eight double-barred galaxies, at high spatial and spectral resolution, using...
  • Publication
    The Realm of the Galactic Globular Clusters and the Mass of Their Primordial Clouds
    By adopting the empirical constraints related to the estimates of helium enhancement ({{Δ }}Y), the present mass ratio between first and second stellar...
  • Publication
    The Recent Star Formation History of NGC 5102
    We present Hubble Space Telescope photometry of young stars in NGC 5102, a nearby gas-rich post-starburst S0 galaxy with a bright young stellar nucleus. We use...
  • Publication
    The Recent Stellar Archeology of M31—The Nearest Red Disk Galaxy
    We examine the star-forming history of the M31 disk during the past few hundred Myr. The luminosity functions (LFs) of main-sequence stars at distances R GC >...
  • Publication
    The recurrent impact of the Sagittarius dwarf on the star formation history of the Milky Way
    Satellites orbiting disk galaxies can induce phase space features such as spirality, vertical heating and phase-mixing in their disks. Such features have also...
  • Publication
    The red giant branch phase transition: Implications for the RGB luminosity function bump and detections of Li-rich red clump stars
    We performed a detailed study of the evolution of the luminosity of He-ignition stage and of the red giant branch bump luminosity during the red giant branch...