Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exoplanetary searches with gravitational microlensing: polarization
  issues   There are different methods for finding exoplanets such as radial spectral
shifts, astrometrical measurements, transits, timing etc. Gravitational
microlensing (including pixel-lensing) is among the most promising techniques
with the potentiality of detecting Earth-like planets at distances about a few
astronomical units from their host star or near the so-called snow line with a
temperature in the range $0-100^0$ C on a solid surface of an exoplanet. We
emphasize the importance of polarization measurements which can help to resolve
degeneracies in theoretical models. In particular, the polarization angle could
give additional information about the relative position of the lens with
respect to the source.

29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol