Journal: The Astrophysical Journal

  • Publication
    Brown Dwarf Disks at Ages of 5-10 Myr
    We present Spitzer/IRAC and MIPS 24 μm observations for 28 brown dwarfs in the Upper Scorpius (UppSco) region. We find a disk fraction of 10.7%+8.7% -3.3%. One...
  • Publication
    BVRI Photometry of QSO 0957+561A, B: Observations, New Reduction Method, and Time Delay
    CCD observations of the gravitational lens system Q0957+561A, B in the BVRI bands are presented in this paper. The observations, taken with the 82 cm IAC-80...
  • Publication
    C-19 and Hot, Wide Star Streams
    The C-19 star stream has the abundance characteristics of an unusually metal-poor globular cluster but kinematically is uncharacteristically hot and wide for a...
  • Publication
    Can Cuspy Dark-matter-dominated Halos Hold Cored Stellar Mass Distributions?
    According to the current concordance cosmological model, dark matter (DM) particles are collisionless and produce self-gravitating structures with a central...
  • Publication
    Candidate Gravitationally Lensed Dusty Star-forming Galaxies in the Herschel Wide Area Surveys
    We present a list of candidate gravitationally lensed dusty star-forming galaxies (DSFGs) from the HerMES Large Mode Survey and the Herschel Stripe 82 Survey...
  • Publication
    Capturing the Physics of MaNGA Galaxies with Self-supervised Machine Learning
    As available data sets grow in size and complexity, advanced visualization tools enabling their exploration and analysis become more important. In modern...
  • Publication
    Carbon Abundances in Compact Galactic Planetary Nebulae: An Ultraviolet Spectroscopic Study with the Space Telescope Imaging Spectrograph (STIS)
    We surveyed a sample of compact Galactic planetary nebulae (PNe) with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope (HST) to determine...
  • Publication
    Carbon and Oxygen Galactic Gradients: Observational Values from H II Region Recombination Lines
    We present results of deep echelle spectrophotometry of eight Galactic H II regions located at Galactocentric distances between 6.3 and 10.4 kpc. The data have...
  • Publication
    Carbon, Nitrogen, and Oxygen Galactic Gradients: A Solution to the Carbon Enrichment Problem
    Eleven models of Galactic chemical evolution, differing in the carbon, nitrogen, and oxygen yields adopted, have been computed to reproduce the Galactic O/H...