Astrophysical: Radial velocity

  • Publication
    SEGUE-2: Old Milky Way Stars Near and Far
    The Sloan Extension for Galactic Understanding and Exploration 2 (SEGUE-2) obtained 128,288 low-resolution spectra (R ~ 1800) of 118,958 unique stars in the...
  • Publication
    Solar core rotation
    Data from solar line of sight velocity measurements are presented to demonstrate the existence of a synodic signal with a 6.5 m/sec amplitude. Recordings of...
  • Publication
    Spectral and radial velocity studies of 5 northern central stars of planetary nebulae
    Spectrograms of five bright northern central stars of planetary nebulae (CSPN) are compiled in order to provide spectral descriptions of these stars, with...
  • Publication
    TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images
    We present the discovery and characterization of five hot and warm Jupiters—TOI-628 b (TIC 281408474; HD 288842), TOI-640 b (TIC 147977348), TOI-1333 b (TIC...
  • Publication
    TESS-Keck Survey. V. Twin Sub-Neptunes Transiting the Nearby G Star HD 63935
    We present the discovery of two nearly identically sized sub-Neptune transiting planets orbiting HD 63935, a bright (V = 8.6 mag), Sun-like (T eff = 5560 K)...
  • Publication
    The cataclysmic variable SS Cygni
    A general panorama of SS Cygni is presented. The paper first describes the CV cataclysmic variables and the current theories which attempt to describe their...
  • Publication
    The contribution to population in ellipticals of blue stragglers - A test of their origin
    An observational test of the binary hypothesis for the origin of the blue straggler (BS) stars has been performed searching for radial velocity variables among...
  • Publication
    The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs
    Sub-Neptunes with radii of 2–3 R ⊕ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of...
  • Publication
    The galactic wind in the circum-nuclear zone of NGC 6946
    Using the H-II region H-alpha emission detected in high-resolution long slit spectra of the normal spiral NGC 6946 out to 6 kpc from the center, and along 8...