Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resolving Exo-Continents with Einstein Ring Deconvolution   A mission to the focus of the solar gravitational lens could produce images
with unprecedented angular resolution and sensitivity. In the context of trying
to resolve the time variable thermal signature of continents on other
Earth-like exoplanets, we develop an approach to improve the image
reconstruction performance by using azimuthal variations in the Einstein Ring's
intensity. In the first post-Newtonian approximation to General Relativity, an
arbitrary disk intensity distribution in the source plane is mapped to a narrow
annulus around the Einstein Ring, with each azimuthal element corresponding to
a sector in the disk. A matrix-based linear measurement model at various fixed
signal-to-noise ratios demonstrates that this extra information is useful in
improving the reconstruction when the image is sparsely sampled, which could
improve integration times and temporal errors. Various issues and future
outlooks are discussed.

14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
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