Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $\texttt{galkin}$: a new compilation of the Milky Way rotation curve
  data   We present $\texttt{galkin}$, a novel compilation of kinematic measurements
tracing the rotation curve of our Galaxy, together with a tool to treat the
data. The compilation is optimised to Galactocentric radii between 3 and 20 kpc
and includes the kinematics of gas, stars and masers in a total of 2780
measurements carefully collected from almost four decades of literature. A
simple, user-friendly tool is provided to select, treat and retrieve the data
of all source references considered. This tool is especially designed to
facilitate the use of kinematic data in dynamical studies of the Milky Way with
various applications ranging from dark matter constraints to tests of modified
gravity.

2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga