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

doi:10.1088/0004-637X/806/1/69

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

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Abstract

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.

Original language	English
Article number	69
Journal	Astrophysical Journal
Volume	806
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/806/1/69
Publication status	Published - 2015 Jun 10

Keywords

ISM: general
dust, extinction
scattering

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Arai, T., Matsuura, S., Bock, J., Cooray, A., Kim, M. G., Lanz, A., Lee, D. H., Lee, H. M., Sano, K., Smidt, J., Matsumoto, T., Nakagawa, T., Onishi, Y., Korngut, P., Shirahata, M., Tsumura, K., & Zemcov, M. (2015). MEASUREMENTS of the MEAN DIFFUSE GALACTIC LIGHT SPECTRUM in the 0.95-1.65 μm BAND from CIBER. Astrophysical Journal, 806(1), [69]. https://doi.org/10.1088/0004-637X/806/1/69

MEASUREMENTS of the MEAN DIFFUSE GALACTIC LIGHT SPECTRUM in the 0.95-1.65 μm BAND from CIBER. / Arai, T.; Matsuura, S.; Bock, J.; Cooray, A.; Kim, M. G.; Lanz, A.; Lee, D. H.; Lee, H. M.; Sano, K.; Smidt, J.; Matsumoto, T.; Nakagawa, T.; Onishi, Y.; Korngut, P.; Shirahata, M.; Tsumura, K.; Zemcov, M.

In: Astrophysical Journal, Vol. 806, No. 1, 69, 10.06.2015.

Research output: Contribution to journal › Article

Arai, T, Matsuura, S, Bock, J, Cooray, A, Kim, MG, Lanz, A, Lee, DH, Lee, HM, Sano, K, Smidt, J, Matsumoto, T, Nakagawa, T, Onishi, Y, Korngut, P, Shirahata, M, Tsumura, K & Zemcov, M 2015, 'MEASUREMENTS of the MEAN DIFFUSE GALACTIC LIGHT SPECTRUM in the 0.95-1.65 μm BAND from CIBER', Astrophysical Journal, vol. 806, no. 1, 69. https://doi.org/10.1088/0004-637X/806/1/69

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abstract = "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.",

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AU - Bock, J.

AU - Cooray, A.

AU - Kim, M. G.

AU - Lanz, A.

AU - Lee, D. H.

AU - Lee, H. M.

AU - Sano, K.

AU - Smidt, J.

AU - Matsumoto, T.

AU - Nakagawa, T.

AU - Onishi, Y.

AU - Korngut, P.

AU - Shirahata, M.

AU - Tsumura, K.

AU - Zemcov, M.

PY - 2015/6/10

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N2 - 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.

AB - 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.

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