VizieR Online Data Catalog: Band-merged catalogue of AKARI infrared sources (Kim+, 2021)

The NEP-Wide (NEPW) survey (Matsuhara et al. 2006PASJ...58..673M; Lee et al. 2009PASJ...61..375L; Kim et al. 2012A&A...548A..29K, Cat. J/A+A/548/A29), as one of the large-area survey missions of the AKARI space telescope (Murakami et al. 2007PASJ...59S.369M), has provided us with a unique IR data set, sampling the near- to mid-IR wavelength range without large gaps between the filter bands. In this programme, they observed a 5.4deg² circular area centred at the NEP using nine photometric bands covering the range from 2-25μm continuously. The overall strategy of the survey was explained by Lee et al. (2009PASJ...61..375L). Kim et al. (2012A&A...548A..29K, Cat. J/A+A/548/A29) presented the description of the data reduction, source detection, photometry, and catalogue. They also combined the nine separate catalogues (i.e. for N2, N3, N4 in the NIR, S7, S9W, S11 in the MIR-S, and L15, L18W, L24 in the MIR-L channels) along with the optical identification/photometry. Before combining, they carefully discriminated the spurious objects and false detection, in order to confirm the validity of the IR sources: they tried to identify optical counterparts using the CFHT (Hwang et al. 2007ApJS..172..583H, Cat. J/ApJS/172/583) and Maidanak (Jeon et al. 2010ApJS..190..166J, Cat. J/ApJS/190/166) data and then cross-checked against the NIR J-, K-band data obtained from the Kitt Peak National Observatory (KPNO)/FLAMINGOS (Jeon et al. 2014ApJS..214...20J, Cat. J/ApJS/214/20).

(1 data file).