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AKARI/IRC Deep Survey in the North Ecliptic Pole Region

机译：黄道北极地区的AKARI / IRC深度勘测

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摘要

We have made a deep and wide imaging survey with all nine AKARI / IRC bands from 2 to 24μm within a halfdegree of the North Ecliptic Pole. The survey covered a circular area of 0.38 deg2 centered at RA = 17~h56~m,Dec = 66°37' where a deep optical multi-band survey has been conducted by Subaru/Suprime-Cam. The 5 a sensi-tivity of the survey for point sources is 11.0, 48, 117, and 275,0y at wavelengths 3, 7, 15, and 24μm, respectively.The survey is limited by sky noise at wavelengths from 7 to 24 Am, and limited by source confusion from 2 to4 μm. We have also made a point source catalog at each band, consisting of more than 5000 sources with a 50%completeness limit of 93 μJy at 15 Am. Our results are consistent with the pilot survey at faint fluxes and has betterstatistical significance at the bright fluxes. This is the first near- and mid-infrared sub-mJy extragalactic survey withcontiguous wavelength coverage from 2 to 24 Am and a large band-merged catalogue. It will provide powerful andunique diagnostics of obscured star-formation and AGN activities in the galaxies up to z = 2.
机译：我们在北黄点的半度以内，对从2到24μm的所有9条AKARI / IRC波段进行了深度和广泛的成像调查。这项调查覆盖了以RA = 17〜h56〜m，Dec = 66°37'为中心的0.38度2的圆形区域，斯巴鲁/ Suprime-Cam进行了深光学多波段调查。点光源在3、7、15和24μm波长下的5 a敏感性分别为11.0、48、117和275,0y。该调查受到波长在7至24 Am的天空噪声的限制，并且受到2到4μm的光源混乱的限制。我们还制作了每个频段的点源目录，其中包括5000多个源，在15 Am时，其50％的完整性极限为93μJy。我们的结果与微弱通量下的初步调查结果一致，在强通量下具有更好的统计意义。这是首次近红外和中红外亚银河系外调查，具有从2到24 Am的连续波长覆盖范围和较大的波段合并目录。它将为z = 2的星系中模糊的恒星形成和AGN活动提供强大而独特的诊断。

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