Browse > Article
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
연도 인용수 순위
  • Reference
1 Cooray, A., Smidt, J., de Bernardis, F., et al., 2012, Near-infrared background anisotropies from di use intrahalo light of galaxies, Nature, 490, 514   DOI
2 Lorente, R., Onaka, T., Ita, Y., et al., 2008, AKARI IRC Data User Manual (version 1.4), http://www.ir.isas.jaxa.jp/ASTROF/Observation
3 Matsuhara, H., Wada, T., Matsuura, S., et al., 2006, Deep Extragalactic Surveys around the Ecliptic Poles with AKARI (ASTRO-F), PASJ, 58, 673   DOI
4 Matsumoto, T., Seo, H. J., Jeong, W. -S., et al., 2011, AKARI Observation of the Fluctuation of the Near-Infrared Background, ApJ, 742, 124   DOI
5 Pyo, J. H., Matsumoto, T., Jeong, W. -S., et al., 2012, Brightness and Fluctuation of the Mid-Infrared Sky from AKARI Observations toward the North Ecliptic Pole, ApJ, 760, 102   DOI
6 Seo, H. J., Lee, H. M., Matsumoto, T., et al., 2015, AKARI Observation of the Sub-degree Scale Fluctuation of the Near-Infrared Background, ApJ, 807, 140   DOI
7 Wada, T., Oyabu, S., Ita, Y., et al., 2007, Infrared Camera (IRC) Deep Survey in the Performance-Verification Phase, PASJ, 59, 515   DOI