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1 results

  • A New Reservoir of Dwarf Galaxy Candidates in the Centaurus A Group

  • Matthew A. Taylor, Paul Eigenthaler, Thomas H. Puzia, Roberto P. Muñoz, Karen X. Ribbeck, Hong-Xin Zhang, Yasna Ordenes-Briceño, Mia Sauda Bovill
  • Journal:
    Proceedings of the International Astronomical Union / Volume 14 / Issue S344 / August 2018
    Published online by Cambridge University Press:
    30 October 2019, pp. 353-356
    Print publication:
    August 2018
    • Article
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  • We have searched optical u′g′r′i′z′ imaging of 22 deg2 centred on the nearby giant elliptical galaxy NGC 5128 for new dwarf galaxies in the Centaurus A group. We report 45 promising new candidates, which are broadly consistent with the properties of nearby dwarf spheroidal galaxies and extend the size-luminosity relation toward fainter total luminosities and smaller sizes for known dwarf galaxies outside the Local Group (LG). Altogether, these new results show NGC 5128 to be the host of a large reservoir of low-mass dwarf galaxies that is at least as rich as that of the LG and is ripe for detailed follow-up observations.