Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SOWAT: Speckle Observations With Alleviated Turbulence   Adaptive optics (AO) systems and image reconstruction algorithms are
indispensable tools when it comes to high-precision astrometry. In this paper,
we analyze the potential of combining both techniques, i.e. by applying image
reconstruction on partially AO corrected short exposures. Therefore we simulate
speckle clouds with and without AO corrections and create synthetic
observations. We apply holographic image reconstruction to the obtained
observations and find that (i) the residual wavefronts decorrelate slowlier and
to a lower limit when AO systems are used, (ii) the same reference stars yield
a better reconstruction, and (iii) using fainter reference stars we achieve a
similar image quality. These results suggest that holographic imaging of
speckle observations is feasible with 2-3 times longer integration times and
3mag fainter reference stars, to obtain diffraction-limited imaging from
low-order AO systems that are less restricted in sky-coverage than typical
high-order AO systems.

17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th