Mathematics – Probability
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop.1116b&link_type=abstract
ATNF proposal C1750, Semester: October, 2007
Mathematics
Probability
Galactic, Atca
Scientific paper
We request 26 hours of ATCA time to obtain sub-arcsecond accurate positions for 57 water masers (33 of which are new detections) that we have detected towards 1.2 mm dust clumps using the Mount Pleasant radio telescope. The search has been primarily directed towards those 1.2 mm dust clumps that were determined to have a high probability of associated water maser presence using the model of Breen et al. (2007). The rms pointing errors of the Mount Pleasant radio telescope are approximately 0.5 arcminutes which is insufficient to meaningfully compare the locations of the water masers with infrared data for the regions as well as the positions of the 1.2 mm dust clumps, towards which the observations were targeted. By obtaining sub-arcsecond accurate positions for the water masers we aim to test the model for water maser presence within 1.2 mm dust clumps of Breen et al. (2007) and add refinements as required. Modelling the presence/absence of water masers using the properties of 1.2 mm dust clumps provides a unique opportunity to constrain the mass range of the stars that the water masers are associated with.
Breen Shari
Caswell James
Ellingsen Simon
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