NGC 1851: Understanding the Ultraviolet Populations

Zurek, David; Dieball, A.; Knigge, C.; Shara, M.; Long, K.; Maíz Apellániz, J.
American Astronomical Society, AAS Meeting #211, #58.06; Bulletin of the American Astronomical Society, Vol. 39, p.834


The globular cluster NGC 1851 was observed with STIS/FUV-MAMA and the F25QTZ filter in 1999. We have examined this data and obtained additional data using the ACS/SBC in 2006. The optical identification of the ultaviolet sources has allowed us to identify the various poplulations in this cluster and the significance of those populations. The data allows us to examine the various ultraviolet sources for variability and we have identified a number of unique sources.