Articles | Volume 24, issue 2
Research article
26 Jan 2024
Research article |  | 26 Jan 2024

Structure, variability, and origin of the low-latitude nightglow continuum between 300 and 1800 nm: evidence for HO2 emission in the near-infrared

Stefan Noll, John M. C. Plane, Wuhu Feng, Konstantinos S. Kalogerakis, Wolfgang Kausch, Carsten Schmidt, Michael Bittner, and Stefan Kimeswenger

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OH level populations and accuracies of Einstein-A coefficients from hundreds of measured lines
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New insights for mesospheric OH: multi-quantum vibrational relaxation as a driver for non-local thermodynamic equilibrium
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Measuring FeO variation using astronomical spectroscopic observations
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Comparison of VLT/X-shooter OH and O2 rotational temperatures with consideration of TIMED/SABER emission and temperature profiles
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Subject: Gases | Research Activity: Remote Sensing | Altitude Range: Mesosphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Barbier, D., Dufay, J., and Williams, D.: Recherches sur l'émission de la raie verte du Ciel nocturne, Ann. Astrophys., 14, 399–437, 1951. a
Barnes, M., Fraser, M. M., Hajigeorgiou, P. G., and Merer, A. J.: Isotope and hyperfine structure in the “orange” system of FeO: Evidence for two 5Δi excited states, J. Mol. Spectrosc., 170, 449–465,, 1995. a
Baron, P., Dupuy, E., Urban, J., Murtagh, D. P., Eriksson, P., and Kasai, Y.: HO2 measurements in the stratosphere and the mesosphere from the sub-millimetre limb sounder Odin/SMR, Int. J. Remote Sens., 30, 4195–4208,, 2009. a
Barth, C. A. and Hildebrandt, A. F.: The 5577 A airglow emission mechanism, J. Geophys. Res., 66, 985–986,, 1961. a
Bass, A. M. and Benedict, W. S.: A new infrared band system of FeO, Astrophys. J., 116, 652,, 1952. a, b
Short summary
The Earth's nighttime radiation in the range from the near-UV to the near-IR mainly originates between 75 and 105 km and consists of lines of different species, which are important indicators of the chemistry and dynamics at these altitudes. Based on astronomical spectra, we have characterised the structure and variability of a pseudo-continuum of a high number of faint lines and discovered a new emission process in the near-IR. By means of simulations, we identified HO2 as the likely emitter.
Final-revised paper