The Effects of Multiplicity on the Evolution of Young Stellar Objects: A NICMOS Imaging Study

Details The Effects of Multiplicity on the Evolution of Young Stellar Objects: A NICMOS Imaging Study The Effects of Multiplicity on the Evolution of Young Stellar Objects: A NICMOS Imaging Study

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hst..prop11205m&link_type=abstract

HST Proposal ID #11205. Cycle 16

Computer Science

Scientific paper

We propose to use NICMOS to investigate the multiplicity of young stellar objects YSOs in the Orion B molecular cloud. Previous observations with the Spitzer Space Telescope have revealed a remarkable star forming filament near the NGC 2068 reflection nebula. The population of YSOs associated with the filament exhibit a surprisingly wide range of circumstellar evolutionary states, from deeply embedded protostars to T Tauri accretion disks. Many of the circumstellar disks themselves show evidence for significant dust evolution, including grain growth and settling and cleared inner holes, apparently in spite of the very young age of these stars. We will estimate the binary fraction of a representative sample of objects in these various stages of evolution in order to test whether companions may play a significant role in that evolution.;

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