[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5303/PKAS.2017.32.1.327

AKARI OBSERVATIONS OF THE FLUCTUATIONS OF THE NEAR-INFRARED BACKGROUND II

Seo, H.J. (Department of Physics and Astronomy, Seoul National University)
Lee, H.M. (Department of Physics and Astronomy, Seoul National University)
Matsumoto, T. (Institute of Astronomy and Astrophysics, Academia Sinica)
Jeong, W.S. (Korea Astronomy and Space Science Institute (KASI))
Lee, M.G. (Department of Physics and Astronomy, Seoul National University)
Pyo, J. (Korea Astronomy and Space Science Institute (KASI))

Publication Information

Publications of The Korean Astronomical Society / v.32, no.1, 2017 , pp. 327-329 More about this Journal

Abstract

We report a spatial fluctuation analysis of the sky brightness in the near-infrared from observations towards the north ecliptic pole (NEP) by AKARI at 2.4 and $3.2{\mu}m$ . As a follow up study of our previous work on the Monitor field of AKARI, we used NEP deep survey data, which covered a circular area of about 0.4 square degrees, in order to extend fluctuation analysis at angular scales up to 1000". After pre-processing, additional correction procedures were done to correct time varying components and instrumental effects such as MUXbleed. To remove resolved objects, we applied $2{\sigma}$ clipping and point spread function (PSF) subtraction. We finally obtained mosaicked images which can be used for the study of various diffuse emissions in the near-infrared sky and found that there are spatial structures in the mosaicked images using a power spectrum analysis.

Keywords

galaxies: high-redshift; infrared: diffuse background; methods: data analysis; stars: population III; zodiacal dust;

Citations & Related Records

Reference

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