Astrophysical: Galaxies

  • Publication
    Imaging the Environment of a z = 6.3 Submillimeter Galaxy with SCUBA-2
    We describe a search for submillimeter emission in the vicinity of one of the most distant, luminous galaxies known, HerMES FLS3, at z = 6.34, exploiting it as...
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    IMF and [Na/Fe] abundance ratios from optical and NIR spectral features in early-type galaxies
    We present a joint analysis of the four most prominent sodium-sensitive features (Na D, Na I λ8190Å, Na I λ1.14 μm, and Na I λ2.21 μm), in the optical and near...
  • Publication
    IMF radial gradients in most massive early-type galaxies
    Using new long-slit spectroscopy obtained with X-Shooter at ESO-VLT, we study, for the first time, radial gradients of optical and near-infrared initial mass...
  • Publication
    IMF shape constraints from stellar populations and dynamics from CALIFA
    In this Paper, we describe how we use stellar dynamics information to constrain the shape of the stellar initial mass function (IMF) in a sample of 27 early...
  • Publication
    IMF&ndashMetallicity: A Tight Local Relation Revealed by the CALIFA Survey
    Variations in the stellar initial mass function (IMF) have been invoked to explain the spectroscopic and dynamical properties of early-type galaxies (ETGs)...
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    Impact of baryon physics on dark matter structures: a detailed simulation study of halo density profiles
    The back-reaction of baryons on the dark matter halo density profile is of great interest, not least because it is an important systematic uncertainty when...
  • Publication
    Impact of metallicity and star formation rate on the time-dependent, galaxy-wide stellar initial mass function
    The stellar initial mass function (IMF) is commonly assumed to be an invariant probability density distribution function of initial stellar masses. These...
  • Publication
    Impact of young stellar components on quiescent galaxies: deconstructing cosmic chronometers
    Context. Cosmic chronometers may be used to measure the age difference between passively evolving galaxy populations to calculate the Hubble parameter H(z) as a...
  • Publication
    Implementation of feedback in smoothed particle hydrodynamics: towards concordance of methods
    We perform simulations of feedback from supernovae and black holes with smoothed particle hydrodynamics. Such strong perturbations are inaccurately handled with...