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2013MNRAS.432.3250K - Mon. Not. R. Astron. Soc., 432, 3250-3261 (2013/July-2)
Two epochs of globular cluster formation from deep field luminosity functions: implications for reionization and the Milky way satellites.
KATZ H. and RICOTTI M.
Abstract (from CDS):
Our results suggest that: (i) the bulk of the old globular cluster population with estimated ages ≳ 12Gyr (about 50percent of the total population) formed in the relatively massive dwarf galaxies at redshifts z ≳ 6; (ii) proto-GC formation was an important mode of star formation in those dwarf galaxies, and likely dominated the reionization process. Another consequence of this scenario is that some of the most massive Milky Way satellites may be faint and yet undiscovered because tidal stripping of a dominant GC population precedes significant stripping of the dark matter haloes of these satellites. This scenario may alleviate some remaining tensions between cold dark matter simulations and observations.
Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)
Journal keyword(s): globular clusters: general - galaxies: luminosity function, mass function - cosmology: theory
Simbad objects: 6
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