A GIANO-TNG high-resolution infrared spectrum of the airglow emission
A GIANO-TNG high-resolution infrared spectrum of the airglow emission
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气辉发射的 GIANO-TNG 高分辨率红外光谱
DOI:
10.1051/0004-6361/201321366
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发表时间:
2013
影响因子:
6.5
通讯作者:
Oliva E
中科院分区:
文献类型:
--
作者:
Oliva E
AimsA flux-calibrated high-resolution spectrum of the airglow emission is a practicalλ-calibration reference for astronomical spectral observations. It is also useful for constraining the molecular parameters of the OH molecule and the physical conditions in the upper mesosphere.MethodsWe used the data collected during the first technical commissioning of the GIANO spectrograph at the Telescopio NazionaleGalileo(TNG). The high-resolution (R≃ 50 000) spectrum simultaneously covers the 0.95–2.4μm wavelength range. Relative flux calibration is achieved by the simultaneous observation of a spectrophotometric standard star.ResultsWe derived a list of improved positions and intensities of OH infrared lines. The list includes Λ-split doublets, many of which are spectrally resolved. Compared with previous works, the new results correct errors in the wavelengths of the Q-branch transitions. The relative fluxes of OH lines from different vibrational bands show remarkable deviations from theoretical predictions: the Δv= 3, 4 lines are a factor of 2 and 4 brighter than expected. We also found evidence of a significant fraction (1–4%) of OH molecules with a non-thermal population of high-Jlevels. Finally, we list wavelengths and fluxes of 153 lines not attributable to OH. Most of these can be associated with O2, while 37 lines in theHband are not identified. The O2and unidentified lines in theHband account for ≃5% of the total airglow flux in this band.
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DOI:
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发表时间:
1960
期刊:
影响因子:
--
作者:
P. A. Sheppard
通讯作者:
P. A. Sheppard
影响因子:
8.7
作者:
ABRAMS, MC;DAVIS, SP;BRAULT, JW
通讯作者:
BRAULT, JW
DOI:
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发表时间:
2001
期刊:
影响因子:
--
作者:
M. Horvat
通讯作者:
M. Horvat
影响因子:
1.4
作者:
F. Mies
通讯作者:
F. Mies
DOI:
10.1088/0067-0049/195/2/24
发表时间:
2011
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
S. Redman;J. Lawler;G. Nave;L. Ramsey;S. Mahadevan
通讯作者:
S. Mahadevan