Optical Images and Source Catalog of AKARI North Ecliptic Pole Wide Survey Field
Yiseul Jeon, Myungshin Im, Mansur Ibrahimov, Hyung Mok Lee, Induk Lee,, and Myung Gyoon Lee

TL;DR
This paper provides optical imaging data and a source catalog for the AKARI NEP-Wide survey, enabling multi-wavelength studies of infrared sources and galaxy evolution in the north ecliptic pole region.
Contribution
It presents the first optical catalog covering the NEP-Wide field with detailed photometry and astrometry, supporting infrared source identification and galaxy evolution research.
Findings
Catalog contains 96,460 objects in R-band.
Optical data reach depths of ~23.4 mag in B-band.
Astrometric accuracy is about 0.15 arcseconds.
Abstract
We present the source catalog and the properties of the , and 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 area over 2.5 -- 6 wavelengths. The optical imaging data were obtained at the Maidanak Observatory in Uzbekistan using the Seoul National University 4k 4k Camera on the 1.5m telescope. These images cover 4.9 deg where no deep optical imaging data are available. Our , and band data reach the depths of 23.4, 23.1, and 22.3 mag (AB) at 5, respectively. The source catalog contains 96,460 objects in the band, and the astrometric accuracy is about 0.15 at 1 in each RA and Dec direction. These photometric data will be useful for many studies…
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