Meausurement of Sky Suface Brightness Fluctuations at lambda = 4 micron

J. Xu , J. J. Bock , K. M. Ganga , V. Gorjian , K. Uemizu , M. Kawada , A. E. Lange , T. Matsumoto

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T. Watabe

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classification 🌌 astro-ph

keywords fluctuationsbrightnessmicronappearbackgroundbehaviorconfusioncontributing

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We present a Monte-Carlo technique to probe the cosmic Infrared background radiation (CIB) with faint source confusion in deep, wide-field 4 micron images. We report a detection of surface brightness fluctuations using an ensemble of 5000 pixels. The brightness fluctuations do not show correlated structure and appear to be dominated by galaxies. We estimate a lower limit (95% C.L.) on CIB by modeling the number-count behavior of contributing sources to the detected fluctuations.

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Meausurement of Sky Suface Brightness Fluctuations at lambda = 4 micron

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