Journal: The Astrophysical Journal

  • Publication
    The Nature of Ultraluminous X-Ray Sources
    We present spectroscopic observations of six optical counterparts of ultraluminous X-ray sources (ULXs) around nearby galaxies. The spectra of the six objects...
  • Publication
    The Near-Infrared Ca II Triplet-σ Relation for Bulges of Spiral Galaxies
    We present measurements of the near-infrared Ca II triplet (CaT, CaT*), Paschen (PaT), and magnesium (Mg I) indices for a well-studied sample of 19 bulges of...
  • Publication
    The Near-infrared Coronal Line Spectrum of 54 nearby Active Galactic Nuclei
    The relationship between the emission of coronal lines (CLs) and nuclear activity in 36 Type 1 and 18 Type 2 active galactic nuclei (AGNs) is analyzed, for the...
  • Publication
    The Near-ultraviolet Continuum Radiation in the Impulsive Phase of HF/GF-type dMe Flares. I. Data
    We present near-UV (NUV) flare spectra from the Hubble Space Telescope (HST)/Cosmic Origins Spectrograph during two moderate-amplitude U-band flares on the dM4e...
  • Publication
    The Nearest Ultra Diffuse Galaxy: UGC 2162
    We describe the structural, stellar population and gas properties of the nearest ultra diffuse galaxy discovered so far: UGC 2162 (z = 0.00392 {R}e,g=1.7(+/- 0...
  • Publication
    The Negative Baryon Acoustic Oscillation Shift in the Lyα Forest from Cosmological Simulations
    We present the first measurement of the Lyα forest baryon acoustic oscillations (BAO) shift parameter from cosmological simulations. In particular, we generate...
  • Publication
    The Number of Dwarf Satellites of Disk Galaxies versus their Bulge Mass in the Standard Model of Cosmology
    There is a correlation between the bulge mass of the three main galaxies of the Local Group (LG), i.e., M31, Milky Way (MW), and M33, and the number of their...
  • Publication
    The Number of Tidal Dwarf Satellite Galaxies in Dependence of Bulge Index
    We show that a significant correlation (up to 5σ) emerges between the bulge index, defined to be larger for a larger bulge/disk ratio, in spiral galaxies with...
  • Publication
    The Observational and Numerical Analysis of the Rayleigh–Taylor Instability beneath a Hedgerow Prominence
    Using Swedish 1 m Solar Telescope Crisp Imaging Spectro-Polarimeter 6563 Å (Hα) observations and MANCHA3D simulations, we analyze the formation and evolution of...