Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deep learning reconstruction of three-dimensional galaxy distributions
  with intensity mapping observations   Line intensity mapping is emerging as a novel method that can measure the
collective intensity fluctuations of atomic/molecular line emission from
distant galaxies. Several observational programs with various wavelengths are
ongoing and planned, but there remains a critical problem of line confusion;
emission lines originating from galaxies at different redshifts are confused at
the same observed wavelength. We devise a generative adversarial network that
extracts designated emission line signals from noisy three-dimensional data.
Our novel network architecture allows two input data, in which the same
underlying large-scale structure is traced by two emission lines of H$\rm
\alpha$ and [OIII], so that the network learns the relative contributions at
each wavelength and is trained to decompose the respective signals. After being
trained with a large number of realistic mock catalogs, the network is able to
reconstruct the three-dimensional distribution of emission-line galaxies at $z
= 1.3-2.4$. Bright galaxies are identified with a precision of 84%, and the
cross-correlation coefficients between the true and reconstructed intensity
maps are as high as 0.8. Our deep-learning method can be readily applied to
data from planned space-borne and ground-based experiments.

8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ