Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characterizing Extra-solar Oort Clouds with Submillimeter-wave
  Observations   The Oort cloud, a collection of icy bodies orbiting the sun at roughly
$10^{3}$ AU to $10^{5}$ AU, is believed to be the source of the long-period
comets observed in the inner solar system. Although its existence was predicted
nearly 70 years ago, no direct detection of the Oort cloud has been made to
date. Given our current understanding of the formation of the Oort cloud, it is
likely that many stars beyond the sun host their own exo-Oort clouds. We have
recently pointed out that submillimeter-wave telescopes have the capability to
detect the thermal emission from these clouds. High resolution observations of
nearby stars with next generation submillimeter telescopes can obtain high
significance detections of exo-Oort clouds, even in fairly conservative
emission models. A detection and characterization of such emission would open a
new window into the study of the properties and evolution of planetary systems.

22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
19
The categories of this paper are: eess
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol