Looking for tidal streams around Galactic globular clusters

Details Looking for tidal streams around Galactic globular clusters Looking for tidal streams around Galactic globular clusters

Feb 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012epjwc..1903008c&link_type=abstract

Assembling the Puzzle of the Milky Way, Le Grand-Bornand, France, Edited by C. Reylé; A. Robin; M. Schultheis; EPJ Web of Confer

Physics

Scientific paper

The picture of building the Milky Way halo from merging protogalactic fragments is considered the local manifestation of the hierarchical galaxy formation process. In this scenario, some observational evidences have suggested that the outer young Galactic halo globular cluster population might be associated (or even the nuclei) to tidal disrupted dwarf spheroidals, now extinct galaxies. If this hypothesis is true, these systems might be surrounded by a distinct and still detectable stellar population. We have carried out a systematic observation of Galactic globulars covering the galactocentric distance range 10 < RGC< 40 kpc in both hemispheres. We have used wide field instruments both in La Palma and in La Silla observatories to obtain deep photometry of wide areas around these globulars to unveil the possible remnants of their progenitor dwarf galaxies.

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