Journal: The Astrophysical Journal

  • Publication
    Analysis of the Sensitivity of Solar Rotation to Helioseismic Data from GONG, GOLF, and MDI Observations
    Accurate determination of the rotation rate in the radiative zone of the Sun from helioseismic observations requires rotational frequency splittings of...
  • Publication
    Analytic Approximate Seismology of Propagating Magnetohydrodynamic Waves in the Solar Corona
    Observations show that propagating magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere. The technique of MHD seismology uses the wave...
  • Publication
    Analytical Calculation of Stokes Profiles of Rotating Stellar Magnetic Dipole
    The observation of the polarization emerging from a rotating star at different phases opens up the possibility to map the magnetic field in the stellar surface...
  • Publication
    Anomalous Circular Polarization Profiles in Sunspot Chromospheres
    This paper presents a detailed description, analysis, and interpretation of the spectropolarimetric observations recently reported by Socas-Navarro, Trujillo...
  • Publication
    Anomalous Circular Polarization Profiles in the He I 1083.0 nm Multiplet from Solar Spicules
    We report Stokes vector observations of solar spicules and a prominence in the He I 1083 nm multiplet carried out with the Tenerife Infrared Polarimeter. The...
  • Publication
    Anomalously Low-metallicity Regions in MaNGA Star-forming Galaxies: Accretion Caught in Action?
    We use data from 1222 late-type star-forming galaxies in the SDSS IV Mapping Nearby Galaxies at Apache Point Observatory survey to identify regions in which the...
  • Publication
    Antitruncation of Disks in Early-Type Barred Galaxies
    The disks of spiral galaxies are commonly thought to be truncated: the radial surface brightness profile steepens sharply beyond a certain radius (3-5 inner...
  • Publication
    APOGEE Chemical Abundance Patterns of the Massive Milky Way Satellites
    The SDSS-IV Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey has obtained high-resolution spectra for thousands of red giant stars...
  • Publication
    APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy
    The Apache Point Observatory Galactic Evolution Experiment provides the opportunity of measuring elemental abundances for C, N, O, Na, Mg, Al, Si, P, K, Ca, V...