Journal: The Astrophysical Journal

  • Publication
    On the Atomic Polarization of the Ground Level of Na I
    In a recent Letter, we showed the remarkable result that the atomic alignment of the levels P1/2 and S1/2 of the D1 line of Na I is practically destroyed in the...
  • Publication
    On the Characterization of GJ 504: A Magnetically Active Planet-host Star Observed by the Transiting Exoplanet Survey Satellite (TESS)
    We present the results of the analysis of the photometric data collected in long- and short-cadence mode by the Transiting Exoplanet Survey Satellite for GJ 504...
  • Publication
    On the Chemical Abundances of Multiple-Shell Planetary Nebulae with Halos
    We present narrowband imagery and long-slit intermediate-resolution spectroscopy of the multiple-shell planetary nebulae NGC 2438 and NGC 5882. A comparative...
  • Publication
    On the Collisional Disalignment of Dust Grains in Illuminated and Shaded Regions of IC 63
    Interstellar dust grain alignment causes polarization from UV to mm wavelengths, allowing the study of the geometry and strength of the magnetic field. Over the...
  • Publication
    On the Dearth of Ultra-faint Extremely Metal-poor Galaxies
    Local extremely metal-poor galaxies (XMPs) are of particular astrophysical interest since they allow us to look into physical processes characteristic of the...
  • Publication
    On the Diagnostic Potential of Hα for Chromospheric Magnetism
    We investigate the feasibility of measuring line-of-sight magnetic field strength in the solar chromosphere through Stokes polarimetry in the hydrogen Hα line...
  • Publication
    On the Distance and Reddening of the Starburst Galaxy IC 10
    We present deep and accurate optical photometry of the Local Group starburst galaxy IC 10. The photometry is based on two sets of images collected with the...
  • Publication
    On the Distribution of Quiet-Sun Magnetic Fields at Different Heliocentric Angles
    This paper presents results from the analysis of high signal-to-noise ratio spectropolarimetric data taken at four heliocentric angles in quiet-Sun internetwork...
  • Publication
    On the Dust Environment of Main-Belt Comet 313P/Gibbs
    We present observations carried out using the 10.4 m Gran Telescopio Canarias and an interpretative model of the dust environment of activated asteroid 313 P...