Astrophysical: Galaxies

  • Publication
    Euclid: The r<SUB>b</SUB>‑M<SUB>*</SUB> relation as a function of redshift: I. The 5 × 10<SUP>9</SUP> M<SUB>⊙</SUB> black hole in NGC 1272
    Core ellipticals, which are massive early-type galaxies with almost constant inner surface brightness profiles, are the result of dry mergers. During these...
  • Publication
    Eulerian Perturbative Approximations in Planar Symmetry
    In planar symmetry (one-dimensional peculiar motions), using the Eulerian perturbative framework and an arbitrary initial profile, we compute the analytical...
  • Publication
    Evaluating hydrodynamical simulations with green valley galaxies
    We test cosmological hydrodynamical simulations of galaxy formation regarding the properties of the blue cloud (BC), green valley (GV), and red sequence (RS)...
  • Publication
    Evidence for a 20pc Disk at the Nucleus of Centaurus A
    We report Hubble Space Telescope NICMOS observations of the central region of NGC 5128 at 2.2 mu m and in Pa alpha . The continuum images show extended emission...
  • Publication
    Evidence for a fundamental stellar upper mass limit from clustered star formation
    The observed masses of the most massive stars do not surpass about 150 Msolar. This may either be a fundamental upper mass limit which is defined by the physics...
  • Publication
    Evidence for a large stellar bar in the Low Surface Brightness galaxy UGC 7321
    Late-type spiral galaxies are thought to be the dynamically simplest type of disk galaxy and our understanding of their properties plays a key role in galaxy...
  • Publication
    Evidence for a New Elliptical-Galaxy Paradigm: Sérsic and Core Galaxies
    We fitted the surface-brightness profiles of 21 elliptical galaxies using both the Sérsic function and a new empirical model that combines an inner power law...
  • Publication
    Evidence for a Physically Associated Companion Galaxy to I ZW 18
    Using the William Herschel Telescope ISIS spectrograph, deep long-slit spectra were obtained of the ionized gas across the blue compact dwarf galaxy I Zw 18 and...
  • Publication
    Evidence for an Intermediate-Age, Metal-rich Population of Globular Clusters in NGC 4365
    We present spectroscopy for globular clusters (GCs) in the elliptical galaxy NGC 4365, obtained with the Low-Resolution Imaging Spectrograph on the Keck I...