REANALYSIS OF THE NEAR-INFRARED EXTRAGALACTIC BACKGROUND LIGHT BASED ON THE IRTS OBSERVATIONS
REANALYSIS OF THE NEAR-INFRARED EXTRAGALACTIC BACKGROUND LIGHT BASED ON THE IRTS OBSERVATIONS
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DOI：
10.1088/0004-637x/807/1/57
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发表时间：
2015-01
期刊：
影响因子：
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通讯作者：
T. Matsumoto;M. Kim;J. Pyo;K. Tsumura
中科院分区：
文献类型：
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作者：
T. Matsumoto;M. Kim;J. Pyo;K. Tsumura
我们利用最新的黄道光（ZL）、综合恒星光和漫射星系光的观测结果，重新分析了IRTS拍摄的近红外背景数据。我们证实了残余各向同性辐射的存在，其值略低，但与先前报道的几乎相同。在波长大于2 μm时，结果与AKARI最近的观测结果相当一致。我们还使用Wright的不同ZL模型进行了相同的分析，并检测到残余各向同性发射略低于原始Kelsall模型。这两个模型都显示了比星系的综合光更亮的残余各向同性辐射。
We reanalyze data of the near-infrared background taken by IRTS using up-to-date observational results of zodiacal light (ZL), integrated star light, and diffuse Galactic light. We confirm the existence of residual isotropic emission, which is slightly lower but almost the same as previously reported. At wavelengths longer than 2 μm, the result is fairly consistent with the recent observation with AKARI. We also perform the same analysis using a different ZL model by Wright and detect residual isotropic emission that is slightly lower than that based on the original Kelsall model. Both models show residual isotropic emission that is significantly brighter than the integrated light of galaxies.