Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Millimeter and Submillimeter Survey of the R Corona Australis Region   Using a combination of data from the Antarctic Submillimeter Telescope and
Remote Observatory (AST/RO), the Arizona Radio Observatory Kitt Peak 12m
telescope and the Arizona Radio Observatory 10m Heinrich Hertz Telescope, we
have studied the most active part of the R CrA molecular cloud in multiple
transitions of Carbon Monoxide, HCO$^+$ and 870\micron continuum emission.
Since R CrA is nearby (130 pc), we are able to obtain physical spatial
resolution as high as 0.01pc over an area of 0.16 pc$^2$, with velocity
resolution finer than 1 km/s. Mass estimates of the protostar driving the
mm-wave emission derived from HCO$^+$, dust continuum emission and kinematic
techniques point to a young, deeply embedded protostar of $\sim$0.5-0.75
M$_\odot$, with a gaseous envelope of similar mass. A molecular outflow is
driven by this source that also contains at least 0.8 M$_\odot$ of molecular
gas with $\sim$0.5 L$_\odot$ of mechanical luminosity. HCO$^+$ lines show the
kinematic signature of infall motions as well as bulk rotation. The source is
most likely a Class 0 protostellar object not yet visible at near-IR
wavelengths. With the combination of spatial and spectral resolution in our
data set, we are able to disentangle the effects of infall, rotation and
outflow towards this young object.

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The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph