Computer Science
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..362m&link_type=abstract
NOAO Proposal ID #1999A-0362
Computer Science
Scientific paper
The populous globular cluster system of the galaxy M87 figures prominently in efforts to understand the formation and evolution of giant elliptical galaxies. Recent HST observations (Whitmore et al. 1995; Elson & Santiago 1996) have shown that globular clusters near the center of M87 have a markedly bimodal metallicity distribution with prominent metal-poor and metal-rich peaks. These peaks suggest a complex formation history, but their source remains unclear. According to several theories put forward to explain their origin, the behavior of the globular cluster metallicity distribution at much larger radii would be a particularly discriminating clue. Our goal is to test these theories by measuring the metallicity distribution of globular clusters at distances up to 1 degree (300 kpc) from the center of M87. We propose deep BVI imaging of eight 36' × 36' fields around M87 using the KPNO 4m and the MOSAIC camera.
Cote' Patrick
Marzke Ronald
West Michael
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