Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The closest extrasolar planet: A giant planet around the M4 dwarf Gl 876   High precision radial velocity observations of the nearby M4 dwarf Gl 876
with the Observatoire de Haute Provence 1.93 m telescope and the new 1.20 m
swiss telescope at la Silla indicate the presence of a jovian mass companion to
this star. The orbital fit to the data gives a period of 60.8 days, a velocity
amplitude of 246 m/s and an eccentricity of 0.34. Assuming that Gl 876 has a
mass of 0.3 solar masses, the mass function implies a mass for the companion of
2/sin(i) Jupiter masses.

37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
2
The categories of this paper are: math