Astrophysical: Galaxies

  • Publication
    The Nature of Fossil Galaxy Groups: Are They Really Fossils?
    We use SDSS-DR4 photometric and spectroscopic data out to redshift z ~ 0.1 combined with ROSAT All Sky Survey X-ray data to produce a sample of 25 fossil groups...
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    The nature of giant clumps in high-z discs: a deep-learning comparison of simulations and observations
    We use deep learning to explore the nature of observed giant clumps in high-redshift disc galaxies, based on their identification and classification in...
  • Publication
    The Nature of Growing Bulges Within z < 1.3 Galaxy Disks in the GOODS-N Field
    We analyze central surface brightness μ0, nuclear and global colors of intermediate redshift disk galaxies. On an apparent-diameter-limited sample of 398...
  • Publication
    The nature of late-type spiral galaxies: structural parameters, optical and near-infrared colour profiles and dust extinction
    We analyse V- and H-band surface photometry of a sample of 18 Sb-Sd galaxies. Combining high-resolution Hubble Space Telescope (HST) images with ground-based...
  • Publication
    The nature of LINER galaxies:. Ubiquitous hot old stars and rare accreting black holes
    Context. Galaxies, which often contain ionised gas, sometimes also exhibit a so-called low-ionisation nuclear emission line region (LINER). For 30 years, this...
  • Publication
    The Nature of Luminous X-Ray Sources with Mid-Infrared Counterparts
    We investigate the luminous X-ray sources in the Lockman Hole (LH) and the extended Groth strip (EGS) detected at 24 μm using the Multiband Imaging Photometer...
  • Publication
    The nature of nuclear Hα emission in LINERs
    To get insight into the nature of the ionized gas in the nuclear region of LINERs, we performed a study of HST Hα imaging of 32 LINERs. The main conclusion from...
  • Publication
    The nature of proximate damped Lyman α systems
    We present high-resolution echelle spectra of seven proximate damped Lyman α (PDLA) systems. The relative velocity separation of each PDLA from the background...
  • Publication
    The Nature of Starbursts. I. The Star Formation Histories of Eighteen Nearby Starburst Dwarf Galaxies
    We use archival Hubble Space Telescope observations of resolved stellar populations to derive the star formation histories (SFHs) of 18 nearby starburst dwarf...