Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Performance of the Near-infrared coronagraphic imager on Gemini-South   We present the coronagraphic and adaptive optics performance of the
Gemini-South Near-Infrared Coronagraphic Imager (NICI). NICI includes a
dual-channel imager for simultaneous spectral difference imaging, a dedicated
85-element curvature adaptive optics system, and a built-in Lyot coronagraph.
It is specifically designed to survey for and image large extra-solar gaseous
planets on the Gemini Observatory 8-meter telescope in Chile. We present the
on-sky performance of the individual subsystems along with the end-to-end
contrast curve. These are compared to our model predictions for the adaptive
optics system, the coronagraph, and the spectral difference imaging.

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The categories of this paper are: q-bio
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: cs
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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: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg