Journal: The Astrophysical Journal

  • Publication
    Spectropolarimetric Observations of the Ca II λ8498 and λ8542 in the Quiet Sun
    The Ca II infrared triplet is one of the few magnetically sensitive chromospheric lines available for ground-based observations. We present spectropolarimetric...
  • Publication
    Spectropolarimetry of a Decaying Sunspot Penumbra
    We report on high angular resolution, high-precision spectropolarimetric measurements of a decaying sunspot. The spot gradually lost its penumbra during the...
  • Publication
    Spectropolarimetry of the Solar Mg II h and k Lines
    We report on spectropolarimetric observations across the Mg II h and k lines at 2800 Å made by the Ultraviolet Spectrometer and Polarimeter on board the Solar...
  • Publication
    Spectroscopic and Asteroseismic Analysis of the Secondary Clump Red Giant HD 226808
    In order to clarify the properties of the secondary clump star HD 226808 (KIC 5307747), we combined four years of data from Kepler space photometry with high...
  • Publication
    Spectroscopic Atlas of the Central 24^''x20^'' of the Seyfert 2 Galaxy NGC 1068
    Two-dimensional spectroscopy of the central 24^''x20^'' of the Seyfert 2 galaxy NGC 1068 has been obtained using a fiber-optic system (2D-FIS). The homogeneity...
  • Publication
    Spectroscopic Confirmation of an Ultra Massive and Compact Galaxy At Z = 3.35: a Detailed Look At an Early Progenitor of Local Giant Ellipticals
    We present the first spectroscopic confirmation of an ultramassive galaxy at redshift z\gt 3 using data from Keck-NIRSPEC, VLT-X-shooter, and GTC-Osiris. We...
  • Publication
    Spectroscopic Confirmation of CEERS NIRCam-selected Galaxies at z ≃ 8-10
    We present JWST/NIRSpec prism spectroscopy of seven galaxies selected from Cosmic Evolution Early Release Science (CEERS) survey NIRCam imaging with photometric...
  • Publication
    Spectroscopic Observations of Convective Patterns in the Atmospheres of Metal-poor Stars
    Convective line asymmetries in the optical spectrum of two metal-poor stars, Gmb 1830 and HD 140283, are compared to those observed for solar metallicity stars...
  • Publication
    Spectroscopic Rotational Velocities of Brown Dwarfs
    We have obtained projected rotation velocities (vrotsini) of a sample of 19 ultracool dwarfs with spectral types in the interval M6.5-T8 using high-resolution...