Summary of GBS Depletion work (rough at the moment!)

* Start with raw maps for all 4 regions (Taurus, Orion, Ophiuchus and Serpens) in 13CO, 12CO and C18O. Reduce using consistent method. * Clumpfinding on all maps to get an idea of the distribution of emission/general clumpiness of the material. Will use several different thresholds, step sizes for the runs so will end with several maps of clump positions/sizes for each isotope. * Following this can compare the different runs with each other and with SCUBA dust maps to find clumps that appear in the same positions for all maps. * Calculate C18O virial masses for the clumps. * Calculate virial masses for the clumps and carry out radiative transfer modeling to see if profiles can be reproduced. Realistic clumps/cores? * How do the distributions etc compare for the different isotopes? * Having narrowed down clumps to those that seem most likely to be real can start using models to estimate ages/sticking coefficients onto dust grains.

-- HelenC - 20 Jan 2010