State-to-state N2(A 3∑+u) energy pooling reactions. II. The formation and quenching of N2(B 3Πg, v′=1–12)

Piper, Lawrence G.

doi:10.1063/1.454388

Cited by 182 publications

(79 citation statements)

References 41 publications

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“…which rate coefficients (see Table 4) are given by Piper [1988a] and Piper [1988b] for processes (18) and (19), respectively.…”

Section: Gordillo-vazquez: Vibrational Kinetics A00e25 A00e25mentioning

confidence: 99%

Vibrational kinetics of air plasmas induced by sprites

Gordillo‐Vázquez

2010

J. Geophys. Res.

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[1] The vibrational kinetics of air plasmas produced by the presence of sprites in the mesosphere of the Earth is studied in detail. The present model solves the coupled electron Boltzmann equation and rate equations for electrons, neutrals (ground and excited), and ions. Special attention is paid to the vibrational kinetics of N 2 (X 1 S g + ) and to that of the N 2 triplet states (A 3 S u + , B 3 P g , C 3 P u , W 3 D u , and B′ 3 S u + ). The results presented are for an altitude of 78 km over sea level where the model-predicted vibrational distribution function (VDF) of N 2 (B 3 P g ) is in agreement with available VDF derived from sprite spectra (640-820 nm) obtained using spectrographs coupled to high-speed video cameras (300 frames per second (fps)). In addition, the model predictions indicate that the sprite plasma VDFs of N 2 (B 3 P g ) and N 2 (C 3 P u ) are almost in thermal equilibrium and exhibit a maximum at v = 0 followed by lower values for v = 1 and v = 2. Finally, it is also predicted that the N 2 (B 3 P g ) and N 2 (C 3 P u ) VDFs recorded with very high speed video cameras (up to 10000 fps) should not differ much from the N 2 (B 3 P g ) and N 2 (C 3 P u ) VDFs obtained with cameras working at lower speeds (30 and 300 fps).

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“…which rate coefficients (see Table 4) are given by Piper [1988a] and Piper [1988b] for processes (18) and (19), respectively.…”

Section: Gordillo-vazquez: Vibrational Kinetics A00e25 A00e25mentioning

confidence: 99%

Vibrational kinetics of air plasmas induced by sprites

Gordillo‐Vázquez

2010

J. Geophys. Res.

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“…It is also shown that at such low N 2 partial pressures the N 2 1pbs emissions intensity is stronger than at higher N 2 partial pressures (e.g., 0.210 Torr). This was attributed [26] to the lower Ar efficiency in quenching N 2 (B 3 P g ) compared to that of N 2 . This means that there are excited N 2 emissions observable even at lower N 2 (partial) pressures than those in [16].…”

Section: The Role Of Oxygenmentioning

confidence: 87%

“…The constants k 1 À k 5 were determined [26,27,30,[38][39][40][41]. In any event calculations show that even though there maybe a very large difference in concentration between N 2 (B 3 P g ) and O 2 ðb 1 R þ g Þ or 2O 2 (a 1 D g ), primarily the very large difference in lifetimes between them and secondarily the quenching (by O, N, NO, even O 3 , etc.)…”

Section: The Role Of Oxygenmentioning

confidence: 99%

“…This means that the same excited N 2 states [like e.g., N 2 ðA 3 R þ u Þ generated in the mechanism of the ensuing N-atom recombination have to be formed in all of the above chemical systems. More recently, spectra were obtained [26] that show N 2 1pbs emissions in the absence of oxygen in a similar flowing afterglow type system with a similar DC discharge even at lower pressures (1.47 Torr Ar and down to 11.5 mTorr N 2 ) than in the Ar/N 2 /O 2 system [16]. It is also shown that at such low N 2 partial pressures the N 2 1pbs emissions intensity is stronger than at higher N 2 partial pressures (e.g., 0.210 Torr).…”

Section: The Role Of Oxygenmentioning

confidence: 99%

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Active nitrogen and oxygen: Enhanced emissions and chemical reactions

Kamaratos

2006

Chemical Physics

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“…The radiation decay of N 2 (B,v=11) (transition B,v=11 -A,v=7, λ = 580.4 nm) is low before quenching, thus the decrease is mainly due to [19]:…”

Section: Determination Of the Absolute Concentration Of An Excited Spmentioning

confidence: 98%

Experimental Study and Modelling of Formation and Decay of Active Species in an Oxygen Discharge

Diamy¹,

Legrand

Рыбкин

et al. 2005

Contrib. Plasma Phys.

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A microwave (2.45 GHz) oxygen discharge (3 hPa, 150 W, 50 mL.min −1 ) is studied by optical emission spectroscopy of O( 5 P) (line 777.4 nm) and of the atmospheric system of O2(head-line 759.4 nm). Calibration of the spectral response of the optical setup is used to determine the concentrations of O( 5 P) and O2(b). The concentration of the O( 5 P) atoms is in the range 10 8 -10 9 cm −3 and the concentration of the O2(b) molecules is in the range 1014 -2×10 14 cm −3 along the discharge tube. An attempt is made to simulate the experimental results by using coupling the Boltzmann equation, homogeneous energy transfer V-V and V-T, heterogeneous reactions on the walls (energy transfer and recombination of atoms) and a kinetic scheme (electronic transfer and chemical reactions). The Boltzmann equation includes momentum transfer, inelastic and superelastic processes and e-e collisions. V-V and V-T transfer equations are obtained from the SSH theory and the kinetic scheme includes 65 reactions with 17 species [electrons e, ions O − and O2 − , fundamental electronic neutral species O( 3 P), O2, O2 (X,v) , O3 and excited neutral species O2(a), O2(b), O2(A), O(

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State-to-state N2(A 3∑+u) energy pooling reactions. II. The formation and quenching of N2(B 3Πg, v′=1–12)

Cited by 182 publications

References 41 publications

Vibrational kinetics of air plasmas induced by sprites

Vibrational kinetics of air plasmas induced by sprites

Active nitrogen and oxygen: Enhanced emissions and chemical reactions

Experimental Study and Modelling of Formation and Decay of Active Species in an Oxygen Discharge

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