Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Outflow and Infall in a Sample of Massive Star Forming Regions II: Large
  Scale Kinematics   We present maps of seven sources selected from Klaassen & Wilson (2007a) in
SiO (J=8-7) and HCO$^+$ and H$^{13}$CO$^+$ (J=4-3) which were obtained using
HARP-B on the James Clerk Maxwell Telescope. We find that four out of our seven
sources have infall signatures based on their HCO$^+$ emission profiles. From
our maps, we have determined the extent of both the outflowing and infalling
regions towards these sources, and constrained the amount of infalling and
outflowing mass as well as the mass infall rate for each massive star forming
region. From our SiO observations, we estimate the source luminosity required
to shock the surroundings of these massive star forming regions and find
luminosities similar to those of the HII regions themselves. We find that the
ratio between our infall and outflow masses is less than one, suggesting high
mass entrainment rates in the molecular outflows. We also find that the large
scale molecular infall rate towards G10.6-0.4 is comparable to the small scale
molecular infall rate found in previous studies.

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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph