AKARI/IRC Deep Survey in the North Ecliptic Pole Region
Publication date: 25 December 2008
Authors: Wada, T. et al.
Journal: Publications of the Astronomical Society of Japan
Copyright: Astronomical Society of Japan
We have made a deep and wide imaging survey with all nine AKARI/IRC bands from 2 to 24 micron within a half degree of the North Ecliptic Pole. The survey covered acircular area of 0.38deg2 centered at RA = 17h56m, Dec = 66°37' where a deep optical multi-band survey has been conducted by Subaru/Suprime-Cam. The 5-sigma sensitivity of the survey for point sources is 11.0, 48, 117, and 275 microJansky at wavelengths 3, 7, 15, and 24 micron, respectively. The survey is limited by sky noise at wavelengths from 7 to 24 micron, and limited by source confusion from 2 to 4 micron. We have also made a point source catalog at each band, consisting of more than 5000 sources with a 50% completeness limit of 93 microJansky at 15 micron. Our results are consistent with the pilot survey at faint fluxes and has better statistical significance at the bright fluxes. This is the first near- and mid-infrared sub-milliJansky extragalactic survey with contiguous wavelength coverage from 2 to 24 micron and a large band-merged catalogue. It will provide powerful and unique diagnostics of obscured star-formation and AGN activities in the galaxies up to z = 2.Link to publication