NOAO >   Observing Info >   Approved Programs >   2008A-0242

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Proposal Information for 2008A-0242


PI: Myungshin Im, Seoul National University, mim@astro.snu.ac.kr
Address: Astronomy Department, Shillim-dong, Kwanak-gu, Seoul 151-742, Korea

CoI: Hyung Mok Lee, Seoul National University
CoI: Myung Gyoon Lee, Seoul National University
CoI: Hideo Matsuhara, ISAS/JAXA
CoI: Takehiko Wada, ISAS/JAXA
CoI: Shinki Oyabu, ISAS/JAXA
CoI: AKARI NEP Survey Team, Japan/Korea/UK

Title: NIR Imaging of the AKARI North Ecliptic Pole Wide Survey Field

Abstract: We propose to perform J- and H-band wide-field imaging of the north ecliptic pole (NEP) area which has been surveyed by the AKARI Infrared Space Telescope. The NEP-Wide survey, one of the AKARI's key scientific programs, images a 5.8 deg^2 circular area centered on the north ecliptic pole with contiguous 9 passbands between 2.5 and 24 (micron) to the flux limit ranging from 15 (mu)Jy to 500 (mu)Jy (plus FIR data), including 11, 15, and 18 (micron) bands where the Spitzer has limitations. Thus, NEP-Wide is the only wide-area IR survey that allows us to study the evolution of various mid-IR features from z=0 to z=2 such as PAHs, silicate absorptions, and power-slopes of AGNs, and their connection to IR-luminosity, star formation and AGN activities of IR sources not bright enough for the Spitzer spectroscopy. Optical imaging as well as radio/X-ray data exist over this field, however there is a gaping hole at NIR between the AKARI and the optical coverage. In order to fill the wavelength gap, we propose to obtain J-, and H-band images to 15 (mu)Jy at 5-\sigma using FLAMINGOS on the 2.1-m. Filling the hole in the spectral energy distribution will significantly increase the value of the NEP-Wide dataset by permitting us to add more accurate stellar mass and photo-z estimates, and also a large number of SEDs from optical to IR without a gap in wavelength coverage.


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