Astrophysical: Galaxies

  • Publication
    Properties of the Be-type stars in 30 Doradus
    The evolutionary status of Be-type stars remains unclear, with both single-star and binary pathways having been proposed. Here, VFTS spectroscopy of 73 Be-type...
  • Publication
    Properties of the Dwarf Galaxy Population in Galaxy Clusters
    We present the observational properties of the dwarf galaxy population (Mr>M*r+1) corresponding to one of the largest samples of spectroscopically confirmed...
  • Publication
    Properties of the H II Region Populations of M51 and NGC 4449 from Hα Images with the Advanced Camera for Surveys on the Hubble Space Telescope
    We have used images from the Advanced Camera for Surveys on the Hubble Space Telescope in Hα, and in the neighboring continuum, to produce flux-calibrated...
  • Publication
    Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory
    The dwarf spheroidal galaxies (dSphs) orbiting the Milky Way are widely regarded as systems supported by velocity dispersion against self-gravity, and as prime...
  • Publication
    Prospects for high-z cluster detections with Planck, based on a follow-up of 28 candidates using MegaCam at CFHT
    The Planck catalogue of SZ sources limits itself to a significance threshold of 4.5 to ensure a low contamination rate by false cluster candidates. This means...
  • Publication
    Pseudobulges in the Disk Galaxies NGC 7690 and NGC 4593
    We present Ks-band surface photometry of NGC 7690 (Hubble type Sab) and NGC 4593 (SBb). We find that, in both galaxies, a major part of the ``bulge'' is as flat...
  • Publication
    PSZ2 G282.28+49.94, a recently discovered analogue of the famous Bullet Cluster
    We present a detailed study of the gas and galaxy properties of the cluster PSZ2 G282.28+49.94 detected in the Planck all-sky survey. The intracluster medium...
  • Publication
    Pursuing Local Group blue massive stars with WSO-ISSIS
    The Local Group galaxies enable us to study the impact of metallicity on the structure and evolution of massive stars through spectroscopic analyses. However...
  • Publication
    Pushing automated morphological classifications to their limits with the Dark Energy Survey
    We present morphological classifications of ~27 million galaxies from the Dark Energy Survey (DES) Data Release 1 (DR1) using a supervised deep learning...