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arXiv · 1010.3517

Optical Images and Source Catalog of AKARI North Ecliptic Pole Wide Survey Field

Yiseul Jeon·Myungshin Im·Mansur Ibrahimov·Hyung Mok Lee·Induk Lee·Myung Gyoon Lee
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Abstract

We present the source catalog and the properties of the $B-, R-$, and $I-$band images obtained to support the {\it AKARI} North Ecliptic Pole Wide (NEP-Wide) survey. The NEP-Wide is an {\it AKARI} infrared imaging survey of the north ecliptic pole covering a 5.8 deg$^2$ area over 2.5 -- 6 $\micron$ wavelengths. The optical imaging data were obtained at the Maidanak Observatory in Uzbekistan using the Seoul National University 4k $\times$ 4k Camera on the 1.5m telescope. These images cover 4.9 deg$^2$ where no deep optical imaging data are available. Our $B-, R-$, and $I-$band data reach the depths of $\sim$23.4, $\sim$23.1, and $\sim$22.3 mag (AB) at 5$\sigma$, respectively. The source catalog contains 96,460 objects in the $R-$band, and the astrometric accuracy is about 0.15$\arcsec$ at 1$\sigma$ in each RA and Dec direction. These photometric data will be useful for many studies including identification of optical counterparts of the infrared sources detected by {\it AKARI}, analysis of their spectral energy distributions from optical through infrared, and the selection of interesting objects to understand the obscured galaxy evolution.

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Yiseul Jeon, Myungshin Im, Mansur Ibrahimov, Hyung Mok Lee, Induk Lee, Myung Gyoon Lee. 2010-10-18. Optical Images and Source Catalog of AKARI North Ecliptic Pole Wide Survey Field. https://doi.org/10.1088/0067-0049/190/1/166

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