Astrophysical: Galaxies

  • Publication
    A Possible Relationship between Quasars and Clusters of Galaxies
    The distribution on the sky of clusters of galaxies shows significant association with relatively nearby, large, active galaxies. The pattern is that of...
  • Publication
    A possible signature of the influence of tidal perturbations in dwarf galaxy scaling relations
    Dwarf galaxies are excellent cosmological probes, because their shallow potential wells make them very sensitive to the key processes that drive galaxy...
  • Publication
    A post-merger enhancement only in star-forming Type 2 Seyfert galaxies: the deep learning view
    Supermassive black holes require a reservoir of cold gas at the centre of their host galaxy in order to accrete and shine as active galactic nuclei (AGN). Major...
  • Publication
    A prediction about the age of thick discs as a function of the stellar mass of the host galaxy
    One of the suggested thick disc formation mechanisms is that they were born quickly and in situ from a turbulent clumpy disc. Subsequently, thin discs formed...
  • Publication
    A principal component analysis approach to the star formation history of elliptical galaxies in compact groups
    Environmental differences in the stellar populations of early-type galaxies are explored using principal component analysis (PCA), focusing on differences...
  • Publication
    A probabilistic deep learning model to distinguish cusps and cores in dwarf galaxies
    Numerical simulations within a cold dark matter (DM) cosmology form haloes whose density profiles have a steep inner slope ('cusp'), yet observations of...
  • Publication
    A QSO Discovered at the Redshift of the Extended X-Ray Cluster RX J0152.7-1357
    The galaxy cluster RX J0152.7-1357 at z=0.8325 is one of the most luminous X-ray clusters known. It is elongated toward the bright, nearby, X-ray active galaxy...
  • Publication
    A quantitative demonstration that stellar feedback locally regulates galaxy growth
    We have applied stellar population synthesis to 500-pc-sized regions in a sample of 102 galaxy discs observed with the MUSE spectrograph. We derived the star...
  • Publication
    A quartet of black holes and a missing duo: probing the low end of the MBH-σ relation with the adaptive optics assisted integral-field spectroscopy
    We present mass estimates of supermassive black holes in six nearby fast rotating early-type galaxies (NGC 4339, NGC 4434, NGC 4474, NGC 4551, NGC 4578, and NGC...