Cluster Archeology: The Origin of Ultra-compact Dwarf Galaxies

Details Cluster Archeology: The Origin of Ultra-compact Dwarf Galaxies Cluster Archeology: The Origin of Ultra-compact Dwarf Galaxies

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10137d&link_type=abstract

HST Proposal ID #10137

Computer Science

Hst Proposal Id #10137 Galaxies

Scientific paper

Ultra-compact dwarf {UCD} galaxies are a new type of galaxy we have discovered in the central regions of the Fornax and Virgo galaxy clusters. Our most recent observations in the Fornax Cluster show that UCDs outnumber normal galaxies in the centre of that cluster. Here we propose snapshot imaging of UCDs in the Fornax and Virgo clusters to test theories of how these fascinating objects formed. In particular we wish to image Virgo cluster UCDs for which we have ground-based Keck spectroscopy to test predictions that they formed more recently than the Fornax UCDs.

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