Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Galactic O-type stars in LAMOST data   This paper reports 209 O-type stars found with LAMOST. All 135 new O-type
stars discovered so far with LAMOST so far are given. Among them, 94 stars are
firstly presented in this sample. There are 1 Iafpe star, 5 Onfp stars, 12 Oe
stars, 1 Ofc stars, 3 ON stars, 16 double-lined spectroscopic binaries, and 33
single-lined spectroscopic binaries. All O-type stars are determined based on
LAMOST low-resolution spectra (R ~ 1800), with their LAMOST median-resolution
spectra (R~7500) as supplements.

34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat