Other
Scientific paper
Jul 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.9581n&link_type=abstract
HST Proposal ID #9581
Other
Hst Proposal Id #9581
Scientific paper
We propose to make optimal use of otherwise unused telescope time while HST's pointing is restricted to the BEA cone during the first 12 days of SMOV3B. A launch date of Feb 28 places two of the Galaxy's most active star forming regions, Trumplers 14 & 16 in the Carina Nebula, within the BEA for the entire 12 day period. We propose to use FGS1r to conduct a high angular resolution survey of the most massive and luminous stars in these two magnificent clusters to establish the incidence of binarity at the high mass end of the HR diagram. This survey will close the detection gap between spectroscopic and speckle surveys in which duplicity can be concealed. This will dramatically improve our knowledge of the IMF at the high mass end of the main sequence as well as the luminosity function {LF} of star forming regions which produce such high mass stars. Finally, this survey will identify targets for an approved SIM Key Science project to dynamically determine O-star masses. This proposal also benefits SMOV3B. The data from these observations will sensitively monitor the jitter, if any, induced by the NCS cool down. This might prove valuable for future reference if the NCS ever needs to be recyled.
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