Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Investigating Binary Properties with Next-Generation Microlensing
  Surveys   We explore the usefulness of future gravitational microlensing surveys in the
study of binary properties such as the binary fraction and the distributions of
binary separation and mass ratio by using the binary sample detectable through
a channel of repeating events. For this, we estimate the rate of repeating
microlensing eventstoward the Galactic bulge field based on standard models of
dynamical and physical distributions of Galactic matter combined with models of
binary separation and mass function. From this, we find that the total number
of repeating events expected to be detected from $\sim 4$-year space-based
surveys will be $\sim 200$--400, that is $\sim 40$--50 times higher than the
rate of current surveys. We find that the high detection rate is due to the
greatly improved sensitivity to events associated with faint source stars and
low-magnification events. We find that the separation range of the binaries to
be covered by the repeating events will extend up to 100 AU. Therefore, the
future lensing surveys will provide a homogeneous sample that will allow to
investigate the statistical properties of Galactic binaries unbiased by
brightness of the binary components.

31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph