Journal: The Astrophysical Journal

  • Publication
    The Alignment of Dark Matter Halos with the Cosmic Web
    We investigate the orientation of the axes and angular momentum of dark matter halos with respect to their neighboring voids using high-resolution N-body...
  • Publication
    The APOGEE Red-clump Catalog: Precise Distances, Velocities, and High-resolution Elemental Abundances over a Large Area of the Milky Way's Disk
    The Sloan Digital Sky Survey III's Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a high-resolution near-infrared spectroscopic survey...
  • Publication
    The Araucaria Project: A Wide-Field Photometric Survey for Cepheid Variables in NGC 3109
    We have obtained mosaic images of NGC 3109 in the V and I bands on 74 nights, spanning approximately 1 yr. From these data, we have conducted an extensive...
  • Publication
    The Assembly of Galaxy Clusters
    We study the formation of 53 galaxy cluster-size dark matter halos (M = 1014.0-14.76 M sun) formed within a pair of cosmological Λ cold dark matter N-body...
  • Publication
    The Average Size and Temperature Profile of Quasar Accretion Disks
    We use multi-wavelength microlensing measurements of a sample of 10 image pairs from 8 lensed quasars to study the structure of their accretion disks. By using...
  • Publication
    The Bar Pattern Speed of Dwarf Galaxy NGC 4431
    We present surface photometry and stellar kinematics of NGC 4431, a barred dwarf galaxy in the Virgo Cluster undergoing a tidal interaction with one of its...
  • Publication
    The Bias from Hydrodynamic Simulations: Mapping Baryon Physics onto Dark Matter Fields
    This paper investigates the hierarchy of baryon physics assembly bias relations obtained from state-of-the-art hydrodynamic simulations with respect to the...
  • Publication
    The Binary Mass Ratio in the Black Hole Transient MAXI J1820+070
    We present intermediate-resolution spectroscopy of the optical counterpart to the black hole X-ray transient MAXI J1820+070 (=ASASSN-18ey) obtained with the...
  • Publication
    The Black Hole Mass-Color Relations for Early- and Late-type Galaxies: Red and Blue Sequences
    The tight correlations between supermassive black hole (SMBH) mass (M BH) and the properties of the host galaxy have useful implications for our understanding...