MEASUREMENTS OF THE MEAN DIFFUSE GALACTIC LIGHT SPECTRUM IN THE 0.95-1.65 μm BAND FROM CIBER

被引:32
作者
Arai, T. [1 ,2 ]
Matsuura, S. [1 ,11 ]
Bock, J. [3 ,4 ]
Cooray, A. [5 ]
Kim, M. G. [6 ]
Lanz, A. [3 ]
Lee, D. H. [7 ]
Lee, H. M. [6 ]
Sano, K. [1 ]
Smidt, J. [5 ,10 ]
Matsumoto, T. [1 ,8 ]
Nakagawa, T. [1 ]
Onishi, Y. [1 ]
Korngut, P. [3 ,4 ]
Shirahata, M. [9 ]
Tsumura, K. [2 ]
Zemcov, M. [3 ,4 ]
机构
[1] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci, Dept Space Astron & Astrophys, Sagamihara, Kanagawa 2525210, Japan
[2] Tohoku Univ, Frontier Res Inst Interdisciplinary Sci, Sendai, Miyagi 9808578, Japan
[3] CALTECH, Dept Astron, Pasadena, CA 91125 USA
[4] NASA, Jet Prop Lab, Pasadena, CA 91109 USA
[5] Univ Calif Irvine, Ctr Cosmol, Irvine, CA 92697 USA
[6] Seoul Natl Univ, Dept Phys & Astron, Seoul 151742, South Korea
[7] Korea Astron & Space Sci Inst KASI, Taejon 305348, South Korea
[8] Natl Taiwan Univ, Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan
[9] Natl Astron Observ Japan, Natl Inst Nat Sci, Tokyo 1818588, Japan
[10] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[11] Kwansei Gakuin Univ, Dept Phys, Kobe, Hyogo 6691337, Japan
基金
日本学术振兴会;
关键词
dust; extinction; ISM: general; scattering; BACKGROUND-EXPERIMENT CIBER; LOW-RESOLUTION SPECTRUM; ZODIACAL LIGHT; MILKY-WAY; INFRARED-EMISSION; SIZE DISTRIBUTION; H-I; CLOUD; FIELD; BRIGHTNESS;
D O I
10.1088/0004-637X/806/1/69
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report measurements of the diffuse galactic light (DGL) spectrum in the near-infrared, spanning the wavelength range 0.95-1.65 mu m by the Cosmic Infrared Background ExpeRiment. Using the low-resolution spectrometer calibrated for absolute spectro-photometry, we acquired long-slit spectral images of the total diffuse sky brightness toward six high-latitude fields spread over four sounding rocket flights. To separate the DGL spectrum from the total sky brightness, we correlated the spectral images with a 100 mu m intensity map, which traces the dust column density in optically thin regions. The measured DGL spectrum shows no resolved features and is consistent with other DGL measurements in the optical and at near-infrared wavelengths longer than 1.8 mu m. Our result implies that the continuum is consistently reproduced by models of scattered starlight in the Rayleigh scattering regime with a few large grains.
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页数:14
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