Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Structure of Winds in AGB Stars   Most dusty winds are described by a set of similarity functions of a single
independent variable that can be chosen as the overall optical depth at visual.
The self-similarity implies general scaling relations among the system
parameters, in agreement with observations. Dust drift through the gas has a
major impact on the structure of most winds.

19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom