Journal ArticleDOI
Effect of Metastable O+(2D) on Reactions of O+ with Nitrogen Molecules
J. A. Rutherford,D. A. Vroom +1 more
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In this article, the metastable O+ 2D 2D ions were determined using the observation that O+(2D)+N2 has a small cross-section for forming NO+, while the ion energy dependence for both reactions has been measured within the energy range 1.0-500 eV.Abstract:
Laboratory measurements indicate that the metastable ions of O+ in reaction with N2 in the low‐energy range (14 eV) react to form principally N2+, while the ion—molecule reaction to form NO+ has a very small probability. The ground‐state O+ ion reacts mainly to form NO+. The abundance of metastable O+ 2D ions was determined using the observation that O+(2D)+N2 has a small cross section for forming NO+. The ion energy dependence for both reactions has been measured within the energy range 1.0–500 eV.read more
Citations
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Flow‐drift technique for ion mobility and ion‐molecule reaction rate constant measurements. II. Positive ion reactions of N+, O+, and H2+ with O2 and O+ with N2 from thermal to [inverted lazy s]2 eV
TL;DR: The positive ion-molecule reactions N++O2→ NO++O→ O2++N, N2++O 2→ O 2++N2, O 2 O2O 2, O O 2O 2, O O O 3, O 2 N 2, N 2 O 2, NO O 2 → O 2 eV ion kinetic energy in the center of mass.
Journal ArticleDOI
Effect of electric fields on the daytime high-latitude E and F regions
TL;DR: In this paper, the coupled continuity, momentum, and energy equations for NO(+, O(+), and O2(+) ions were obtained for conditions appropriate to the daytime high-latitude E and F regions.
Journal ArticleDOI
Charge transfer cross sections for energetic neutral atom data analysis
B. G. Lindsay,R. F. Stebbings +1 more
TL;DR: In this article, the authors present a critical review of the published experimental measurements and recommend a set of parameterized cross sections for ENA data, and the limitations of the measurement techniques and the probable reliability of the recommended cross sections are addressed.
Journal ArticleDOI
A mathematical model of the middle and high latitude ionosphere
TL;DR: In this article, a time-dependent 3D model of the middle and high latitude ionosphere is described, where the density distributions of six ion species and the electron and ion temperatures are obtained from a numerical solution of appropriate continuity, momentum and energy equations.
Journal ArticleDOI
Effects of ion speed distributions in flow‐drift tube studies of ion–neutral reactions
D. L. Albritton,Itzhak Dotan,Werner Lindinger,M. McFarland,Joel Tellinghuisen,Fred C. Fehsenfeld +5 more
TL;DR: In this article, the effects of non-Maxwellian ion speed distributions on ion-neutral reaction rate constants measured in drift tubes are examined experimentally and compared to the predictions of recent theories.
References
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Journal ArticleDOI
Abundance of Excited Ions in O+ and O2+ Ion Beams
TL;DR: In this paper, the fraction of excited ions present in an ion beam formed using various energies E8of the electrons in the ion source is determined ∼20 μsec after formation of the ions so that only long-lived states remain in the beam, as is usual in beam experiments.
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Low-energy collisions between some atmospheric ions and neutral particles
TL;DR: In this paper, a cross-beam experiment at energies within the range 2 to 200 ev was conducted to investigate collisions between positive ions and neutral molecules present in the earth's upper atmosphere.
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Formation of Magnesium Ions by Charge Transfer
TL;DR: In this article, the charge transfer cross sections for several ions in collision with atoms of magnesium to form Mg+ have been measured in the energy range 1-500 eV. The results obtained are analyzed by considering the possibility of resonant or near resonant processes being responsible for the large cross sections obtained for most processes.
Journal ArticleDOI
Fluorescence of solar ionizing radiation
TL;DR: Spectral features arising from the fluorescence caused by solar ionizing radiation examined by mode atmospheres, solar flux, and absorption cross section methods are described in this paper, where the authors present a method to detect solar fluorescence.
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Weak emissions in the near-infrared daytime airglow.
L. Wallace,A.L. Broadfoot +1 more
TL;DR: In addition to the previously observed features, a number of fainter emissions have been observed as mentioned in this paper, such as atomic oxygen emissions at 7774 and 8446 A, and what appears to be the 1-0 band of the first positive system of N 2 + at about 8850 A.