Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Subaru Surveys for High-z Galaxies   We present a summary of optical/NIR deep surveys for very high-$z$ galaxies
using the 8.2m Subaru Telescope operated by National Astronomical Observatory
of Japan. The prime focus mosaic CCD camera, Suprime-Cam, with a very wide
field of view, 34$^\prime \times 27^\prime$, allows us to carry out efficient
optical deep surveys. In particular, the Subaru Deep Field project has provided
us a number of Lyman$\alpha$ emitters beyond $z=6$. We discuss the star
formation history in the early universe based on this project.

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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
2
The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
5
The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph