Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The detection of Class I methanol masers towards regions of low-mass
  star formation   Six young bipolar outflows in regions of low-to-intermediate-mass star
formation were observed in the 7_0-6_1A+, 8_0-7_1A+, and 5_{-1}-4_0E methanol
lines at 44, 95, and 84 GHz, respectively. Narrow features were detected
towards NGC 1333IRAS4A, HH 25MMS, and L1157 B1. Flux densities of the detected
lines are no higher than 11 Jy, which is much lower than the flux densities of
strong maser lines in regions of high-mass star formation. Analysis shows that
most likely the narrow features are masers.

16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga