Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Parametrizations of Non-Gaussian Line-of-sight Velocity Distribution   A five-parameter fitting formula for the line-of-sight stellar velocity
distributions of steady state systems is proposed. It can faithfully reproduce
velocity distributions of theoretical models ranging from nearly Gaussian
profiles to strongly skewed or mildly double-peaked profiles. In contrast to
van der Marel and Franx (1993) and Kuijken and Merrifield (1993), the line
profiles are required to have neither multi-peaks nor negative velocity wings.
Information of the profile is mostly specified by five physically meaningful
and nearly orthogonal fitting parameters.

13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn