Journal: The Astrophysical Journal

  • Publication
    The OmegaWhite Survey for Short-period Variable Stars. V. Discovery of an Ultracompact Hot Subdwarf Binary with a Compact Companion in a 44-minute Orbit
    We report the discovery of the ultracompact hot subdwarf (sdOB) binary OW J074106.0–294811.0 with an orbital period of {P}{orb}=44.66279+/- 1.16× {10}-4 minutes...
  • Publication
    The Optical Counterpart of the Accreting Millisecond Pulsar SAX J1808.4-3658 in Outburst: Constraints on the Binary Inclination
    We present multiband optical/IR photometry of V4580 Sgr, the optical counterpart of the accretion-powered millisecond pulsar SAX J1808.4-3658, taken during the...
  • Publication
    The Optical Light Curves of XTE J2123-058. III. The Mass of the Binary Components and the Structure of the Quiescent Accretion Disk
    We present optical photometry of XTE J2123-058 taken in 1999 and 2000, during its quiescent state. The dominant feature of our R-band light curve is the...
  • Publication
    The Optical/IR Counterpart of the 1998 July 3 Gamma-Ray Burst and Its Evolution
    We imaged the X-ray error box of GRB 980703, beginning 22.5 hr after the gamma-ray event, in both the optical R and near-infrared H bands. A fading optical/IR...
  • Publication
    The Orbit and Companion of PSR J1622-0315: Variable Asymmetry and a Massive Neutron Star
    The companion to PSR J1622-0315, one of the most compact known redback millisecond pulsars, shows extremely low irradiation despite its short orbital period. We...
  • Publication
    The Orbit and Origin of the Ultra-faint Dwarf Galaxy Segue 1
    We present the first proper motion measurement for an ultra-faint dwarf spheroidal galaxy, Segue 1, using data from the Sloan Digital Sky Survey (SDSS) and the...
  • Publication
    The Orientation of Disk Galaxies around Large Cosmic Voids
    Using a large sample of galaxies from the the seventh data release of the Sloan Digital Sky Survey (SDSS-DR7), we have analyzed the alignment of disk galaxies...
  • Publication
    The Origin of the 300 km s‑1 Stream near Segue 1
    We present a search for new members of the 300 km s‑1 stream (300S) near the dwarf galaxy Segue 1 using wide-field survey data. We identify 11 previously...
  • Publication
    The Origin of the Relation between Metallicity and Size in Star-forming Galaxies
    For the same stellar mass, physically smaller star-forming galaxies are also metal richer. What causes the relation remains unclear. The central star-forming...