Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-Velocity Bipolar Molecular Emission from an AGN Torus   We have detected in ALMA observations CO J = 6 - 5 emission from the nucleus
of the Seyfert galaxy NGC 1068. The low-velocity (up to +/- 70 km/s relative to
systemic) CO emission resolves into a 12x7 pc structure, roughly aligned with
the nuclear radio source. Higher-velocity emission (up to +/- 400 km/s) is
consistent with a bipolar outflow in a direction nearly perpendicular (roughly
80 degrees) to the nuclear disk. The position-velocity diagram shows that in
addition to the outflow, the velocity field may also contain rotation about the
disk axis. These observations provide compelling evidence in support of the
disk-wind scenario for the AGN obscuring torus.

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The categories of this paper are: econ
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The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph