Mathematics – Logic
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10567j&link_type=abstract
HST Proposal ID #10567
Mathematics
Logic
Hst Proposal Id #10567 Cosmology
Scientific paper
The history of the formation of galaxies must leave an imprint in the properties of the mass function of collapsed objects and in it's observational manifestation the luminosity function. At present the faint end of the luminosity function of galaxies is poorly known. Accurate knowledge of the luminosity function over the full range of galaxy clustering scales would provide serious constraints on both initial cosmological conditions and modulating astrophysical processes. Wide field imaging surveys with large groundbased telescopes now provide the capability to identify dwarf galaxy candidates to very faint levels. However distances to these candidates are needed to overcome the omnipresent problem of group membership uncertainties and to establish the intrinsic properties of the faint end of the luminosity function. Single orbit observations with HST ACS can provide adequate distances via the surface brightness fluctuation method for targets in this program, resulting in the best definition ever of the luminosity function to M_R=-11 in a specific environment.
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