Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LAMOST 1: A Disrupted Satellite in the Constellation Draco   Using LAMOST spectroscopic data, we find a strong signal of a comoving group
of stars in the constellation of Draco. The group, observed near the apocenter
of its orbit, is 2.6 kpc from the Sun with a metallicity of -0.64 dex. The
system is observed as a streaming population of unknown provenance with mass of
about 2.1E4 solar masses and an absolute V band magnitude of about -3.6. Its
high metallicity, diffuse physical structure, and eccentric orbit may indicate
that the progenitor satellite was a globular cluster rather than a dwarf galaxy
or an open cluster.

35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org