Astrophysical: Galaxies

  • Publication
    A giant thin stellar stream in the Coma Galaxy Cluster
    The study of dynamically cold stellar streams reveals information about the gravitational potential where they reside and provides important constraints on the...
  • Publication
    A giant umbrella-like stellar stream around the tidal ring galaxy NGC 922
    Context. Tidal ring galaxies (TRGs) are rarely observed in the local universe due to their intrinsically transient nature. The tidal ring structures are the...
  • Publication
    A Headless Tadpole Galaxy: The High Gas-phase Metallicity of the Ultra-diffuse Galaxy UGC 2162
    The cosmological numerical simulations tell us that accretion of external metal-poor gas drives star formation (SF) in galaxy disks. One the best pieces of...
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    A Herschel view of the far-infrared properties of submillimetre galaxies
    We study a sample of 61submillimetre galaxies (SMGs) selected from ground-based surveys, with known spectroscopic redshifts and observed with the Herschel Space...
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    A high angular resolution view of the PAH emission in Seyfert galaxies using JWST/MRS data
    Polycyclic aromatic hydrocarbons (PAHs) are carbon-based molecules that are ubiquitous in a variety of astrophysical objects and environments. In this work we...
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    A high fidelity Milky Way simulation with Kraken, Gaia-Enceladus, and Sequoia analogues: clues to their accretion histories
    Within a simulated Milky Way-like galaxy, we identify and analyse analogues of the Gaia-Enceladus (GE), Kraken, and Sequoia mergers that each matches remarkably...
  • Publication
    A high-resolution investigation of the multiphase ISM in a galaxy during the first two billion years
    We have carried out the first spatially resolved investigation of the multiphase interstellar medium (ISM) at high redshift, using the z = 4.24 strongly lensed...
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    A high-resolution VLT/FLAMES study of individual stars in the centre of the Fornax dwarf spheroidal galaxy
    For the first time we show the detailed, late-stage, chemical evolution history of a small nearby dwarf spheroidal galaxy in the Local Group. We present the...
  • Publication
    A hydrodynamical study of outflows in starburst galaxies with different driving mechanisms
    Outflows from starburst galaxies can be driven by thermal pressure, radiation, and cosmic rays. We present an analytic phenomenological model that accounts for...