Electron Temperature Dependence of the Dissociative Recombination Coefficient of Molecular Argon Ions Ar+2 with Electrons

2010 ◽  
Vol 51 (7) ◽  
pp. 672-682 ◽  
Author(s):  
P. Lukáč ◽  
O. Mikuš ◽  
I. Morva ◽  
Z. Zábudlá ◽  
J. Trnovec ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Temperature Dependence ◽  
Dissociative Recombination ◽  
Recombination Coefficient ◽  
Argon Ions

On the effective recombination coefficient in Saturn's ionosphere

2020 ◽  
Author(s):  
Joshua Dreyer ◽  
Erik Vigren ◽  
Michiko Morooka ◽  
Jan-Erik Wahlund ◽  
Stephan Buchert ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Rate Constants ◽  
Recombination Rate ◽  
Negative Ions ◽  
Dissociative Recombination ◽  
Rate Coefficients ◽  
Recombination Coefficient ◽  
Positive Ions ◽  
Electron Production ◽  
Upper Limits

<p>The present study combines RPWS/LP and INMS data from Cassini's orbit 292, which reached an altitude of 1685 km at the lowest point, to constrain the effective recombination coefficient α<sub>300</sub> from measured densities and electron temperatures at a reference electron temperature of 300 K. Assuming photochemical equilibrium at these low altitudes and linking established methods to calculate the electron production rate and the dissociative recombination rate results in a formula to calculate an upper limit for α<sub>300</sub>. This is then compared against rate constants of individual recombination reactions as measured in the laboratory.<br>We derive upper limits for α<sub>300</sub> of ∼ 2.5∗10<sup>-7</sup>cm<sup>3 </sup>s<sup>-1</sup>, which suggest that Saturn's ionospheric positive ions are dominated by species with low recombination rate coefficients. An ionosphere dominated by water group ions or complex hydrocarbons, as previously suggested, is incompatible with this result, as these species have recombination rate constants > 5∗10<sup>-7 </sup>cm<sup>3 </sup>s<sup>-1</sup> at an electron temperature of 300 K. The results do not give constraints on the nature of the negative ions.</p>

Electron temperature dependence of the recombination coefficient in neon

1965 ◽  
Vol 53 (6) ◽  
pp. 657-658 ◽  
Author(s):  
R.L. Taylor ◽  
S.B. Herskovitz ◽  
N. Farhat
Keyword(s):  
Electron Temperature ◽  
Temperature Dependence ◽  
Recombination Coefficient

Electron Temperature Dependence of the Recombination Coefficient in Pure Helium

1961 ◽  
Vol 121 (5) ◽  
pp. 1391-1400 ◽  
Author(s):  
C. L. Chen ◽  
C. C. Leiby ◽  
L. Goldstein
Keyword(s):  
Electron Temperature ◽  
Temperature Dependence ◽  
Recombination Coefficient ◽  
Pure Helium

Electron-temperature dependence of dissociative recombination of electrons withN2+·N2dimer ions

1981 ◽  
Vol 24 (2) ◽  
pp. 743-745 ◽  
Author(s):  
Marlin Whitaker ◽  
Manfred A. Biondi ◽  
Rainer Johnsen
Keyword(s):  
Electron Temperature ◽  
Temperature Dependence ◽  
Dissociative Recombination

Electron-temperature dependence of dissociative recombination of electrons withCO+·(CO)n-series ions

1981 ◽  
Vol 23 (3) ◽  
pp. 1481-1485 ◽  
Author(s):  
Marlin Whitaker ◽  
Manfred A. Biondi ◽  
Rainer Johnsen
Keyword(s):  
Electron Temperature ◽  
Temperature Dependence ◽  
Dissociative Recombination
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