MEASUREMENTS of the MEAN DIFFUSE GALACTIC LIGHT SPECTRUM in the 0.95-1.65 μm BAND from CIBER

T. Arai, S. Matsuura, J. Bock, A. Cooray, M. G. Kim, A. Lanz, D. H. Lee, H. M. Lee, K. Sano, J. Smidt, T. Matsumoto, T. Nakagawa, Y. Onishi, P. Korngut, M. Shirahata, K. Tsumura, M. Zemcov

研究成果: Article査読

22 被引用数 (Scopus)

抄録

We report measurements of the diffuse galactic light (DGL) spectrum in the near-infrared, spanning the wavelength range 0.95-1.65 μm 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 μm 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 μm. Our result implies that the continuum is consistently reproduced by models of scattered starlight in the Rayleigh scattering regime with a few large grains.

本文言語English
論文番号69
ジャーナルAstrophysical Journal
806
1
DOI
出版ステータスPublished - 2015 6 10

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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