Electron-ion recombination studies of planetary ionospheric and astrophysical ions. [HCO/sup +/, H/sub 2/CN/sup +/, and H/sub 2/CN/sup +/. HCN]
Thesis/Dissertation
·
OSTI ID:5115318
The rates of recombination of HCO/sup +/, H/sub 2/CN/sup +/ and H/sub 2/CN/sup +/.HCN ions with electrons were determined as a function of electron temperature using a microwave afterglow/mass spectrometer apparatus employing microwave electron heating. In addition, an investigation was carried out to obtain qualitatively the inelastic energy loss frequency of electrons in dilute N/sub 2/-Ne mixtures using microwave techniques. The recombination rate coefficient ..cap alpha..(HCO/sup +/), of interest for modelling planetary ionospheres and the interstellar medium (ISM), were measured over a wide range of electron temperatures. The results of the determinations are valid over the range 293 K less than or equal to T/sub e/ less than or equal to 4000 K and T/sub +/ = T/sub n/ = 293 K. The magnitude and the temperature dependence of the recombination coefficient for this ion is similar to that predicted and measured for simple diatomic ions. The H/sub 2/CN/sup +/ and H/sub 2/CN..mu...HCN ions are thought to be present in the ionospheres of the outer planets and those of their satellites, and in the ISM.
- Research Organization:
- Pittsburgh Univ., PA (USA)
- OSTI ID:
- 5115318
- Country of Publication:
- United States
- Language:
- English
Similar Records
Channeling of products in the hot atom reaction: H + (CN)2(sub) (right arrow) HCN/HNC + CN, and in the reaction of CN with CH3(sub)SH.
On the relationship of interstellar N/sub 2/H/sup +/, HCO/sup +/, HCN, and CN
The excitation of HCN and HCO{sup +} in the galactic center circumnuclear disk
Journal Article
·
Thu Jul 19 00:00:00 EDT 2001
· J. Phys. Chem. A
·
OSTI ID:943263
On the relationship of interstellar N/sub 2/H/sup +/, HCO/sup +/, HCN, and CN
Journal Article
·
Mon Jan 31 23:00:00 EST 1977
· Astrophys. J.; (United States)
·
OSTI ID:7317171
The excitation of HCN and HCO{sup +} in the galactic center circumnuclear disk
Journal Article
·
Mon Dec 09 23:00:00 EST 2013
· Astrophysical Journal
·
OSTI ID:22348517
Related Subjects
640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640107* -- Astrophysics & Cosmology-- Planetary Phenomena
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
DATA
ELECTRON COLLISIONS
ELECTRON TEMPERATURE
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY LOSSES
EXPERIMENTAL DATA
INFORMATION
INTERSTELLAR SPACE
ION COLLISIONS
LOSSES
NITROGEN
NONMETALS
NUMERICAL DATA
PLANETARY IONOSPHERES
RECOMBINATION
SPACE
TEMPERATURE DEPENDENCE
Radio & X-Ray Sources
640107* -- Astrophysics & Cosmology-- Planetary Phenomena
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
DATA
ELECTRON COLLISIONS
ELECTRON TEMPERATURE
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY LOSSES
EXPERIMENTAL DATA
INFORMATION
INTERSTELLAR SPACE
ION COLLISIONS
LOSSES
NITROGEN
NONMETALS
NUMERICAL DATA
PLANETARY IONOSPHERES
RECOMBINATION
SPACE
TEMPERATURE DEPENDENCE