Physics
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ycat..35309118p&link_type=abstract
VizieR On-line Data Catalog: J/A+A/530/A118. Originally published in: 2011A&A...530A.118P
Physics
Molecular Clouds, Millimetric/Submm Sources, Radio Continuum
Scientific paper
Most work on high-mass star formation has focused on observations of young massive stars in protoclusters. Very little is known about the preceding stage. Here, we present a new high-resolution study of pre-protocluster regions in tracers exclusively probing the coldest and dense gas (NH2 D). The two target regions G29.96-0.02 and G35.20-1.74 (W48) are drawn from the SCAMPS project, which searches for pre-protoclusters near known ultracompact HII regions. We used our data to constrain the chemical, thermal, kinematic, and physical conditions (i.e., densities) in G29.96e and G35.20w. NH3, NH2 D, HCO+, and continuum emission were mapped using the VLA, PdBI, and BIMA.
(2 data files).
Gibb Andrew G.
Hatchell Jennifer
Kauffmann Jens
Pillai Thushara
Thompson Maggie A.
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