Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Instrumentation for the detection and characterization of exoplanets   In no other field of astrophysics has the impact of new instrumentation been
as substantial as in the domain of exoplanets. Before 1995 our knowledge about
exoplanets was mainly based on philosophical and theoretical considerations.
The following years have been marked, instead, by surprising discoveries made
possible by high-precision instruments. More recently the availability of new
techniques moved the focus from detection to the characterization of
exoplanets. Next-generation facilities will produce even more complementary
data that will lead to a comprehensive view of exoplanet characteristics and,
by comparison with theoretical models, to a better understanding of planet
formation.

28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an