Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nucleation studies under the conditions of carbon-rich AGB star
  envelopes: TiC   Many studies of especially dust nucleation in winds of carbon-rich AGB stars
consider primarily carbon as dust forming material. But dust grains formed in
such circumstellar envelopes are rather a mixture of several chemical elements
such as titanium or silicon in addition to the main component carbon as
verified by many investigations of pre-solar grains enclosed in meteorites, for
example. In this contribution we focus on the study of the nucleation of
titanium carbide particles from the gas phase. Therefore, the necessary
properties of molecular titanium carbide clusters have been estimated within
density functional approaches and first implications on the homogeneous
nucleation of TiC are studied for conditions being representative for
circumstellar dust shells around carbon-rich AGB stars.

22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess