Journal: The Astrophysical Journal

  • Publication
    A Search for Very Low Mass Stars and Brown Dwarfs in the Young sigma Orionis Cluster
    We present a CCD-based photometric survey covering 870 arcmin^2 in a young stellar cluster around the young multiple star sigma Orionis. Our survey-limiting R...
  • Publication
    A Second-order Moment of Microlensing Variability as a Novel Tool to Constrain Source Emission Size or Discrete Lens Demographics in Extragalactic Research
    We define a second-order moment of the observational differential microlensing curves that can be used to impose constraints on physical properties of lensed...
  • Publication
    A Shallow Dark Matter Halo in Ultra-diffuse Galaxy AGC 242019: Are UDGs Structurally Similar to Low-surface-brightness Galaxies?
    A central question regarding ultra-diffuse galaxies (UDGs) is whether they are in a separate category from low-surface-brightness (LSB) galaxies, or just their...
  • Publication
    A Simple Model for the Distribution of Quiet-Sun Magnetic Field Strengths
    We derive a first-order linear differential equation describing the shape of the probability density function (PDF) of magnetic field strengths in the quiet Sun...
  • Publication
    A Simple Procedure for Optimizing the Height Resolution in Spectral Line Inversions
    This paper presents a method to determine how much detail of the height stratification of atmospheric parameters can be retrieved from the inversion of spectral...
  • Publication
    A Spatially Resolved Study of Cold Dust, Molecular Gas, H ii Regions, and Stars in the z = 2.12 Submillimeter Galaxy ALESS67.1
    We present detailed studies of a z = 2.12 submillimeter galaxy, ALESS67.1, using sub-arcsecond resolution ALMA, adaptive optics-aided VLT/SINFONI, and Hubble...
  • Publication
    A Spectroscopic Follow-up Program of Very Massive Galaxies at 3 < z < 4: Confirmation of Spectroscopic Redshifts, and a High Fraction of Powerful AGNs
    We present the analysis and results of a spectroscopic follow-up program of a mass-selected sample of six galaxies at 3 z 4 using data from Keck-NIRPSEC and VLT...
  • Publication
    A Spectroscopic Study of the Ancient Milky Way: F- and G-Type Stars in the Third Data Release of the Sloan Digital Sky Survey
    We perform an analysis of spectra and photometry for 22,770 stars included in the third data release (DR3) of the Sloan Digital Sky Survey (SDSS). We derive...
  • Publication
    A Statistical Inference Method for Interpreting the CLASP Observations
    On 2015 September 3, the Chromospheric Lyman-Alpha SpectroPolarimeter (CLASP) successfully measured the linear polarization produced by scattering processes in...