Astrophysical: Binary stars

  • Publication
    Blue stragglers and the binary hypothesis
    An observational test of the binary hypothesis for the origin of blue straggler stars is conducted by searching for radial velocity variables among 30 blue...
  • Publication
    Blue stragglers in open clusters - A test of the binary hypothesis
    A search for binaries among 17 blue stragglers in five galactic clusters, NGC 7789, 6633, 6819, 6939, and M 67, has been performed using measurements of radial...
  • Publication
    Circumstellar matter around the RS CVn system II Peg
    The RS CVn noneclipsing system II Peg has been observed in the J, H, K, L, and M infrared bands along a complete period. The shape of the light curve shows an...
  • Publication
    Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color-Magnitude Diagram
    Many problems in contemporary astrophysics—from understanding the formation of black holes to untangling the chemical evolution of galaxies—rely on knowledge...
  • Publication
    Constraints to the masses of brown dwarf candidates form the lithium test
    We present intermediate dispersion (0.7-2.2 A/pixel) optical spectroscopic observations aimed at applying the 'lithium test' to a sample of 10 brown dwarf...
  • Publication
    Determination of temperatures and angular diameters of 114 F-M stars using the infrared flux method (IRFM)
    Temperatures and angular diameters are derived for 114 F-M stars using the infrared flux (IRFM) method and initially both the Vega flux calibrations of Dreiling...
  • Publication
    Discovery of a widely separated binary system of very low mass stars
    We report our discovery of a nearby wide binary system, LP 714-37 AB. Phan-Bao et al. identified LP 714-37 as a mid-M dwarf during a cross-identification of the...
  • Publication
    Double-lined Spectroscopic Binaries in the APOGEE DR16 and DR17 Data
    APOGEE spectra offer ≲1 km s -1 precision in the measurement of stellar radial velocities. This holds even when multiple stars are captured in the same spectrum...
  • Conference
    Eclipsing Binaries and Asteroseismology
    With numerous active or recently completed public, space-based missions and ground-based follow-up surveys, never before has such a wealth of high-quality and...