Interstellar Molecule Formation; Radiative Association and Exchange Reactions

1971 ◽  
pp. 421-428 ◽  
Author(s):  
William Klemperer
Keyword(s):  
Exchange Reactions ◽  
Interstellar Molecule ◽  
Molecule Formation ◽  
Radiative Association

scholarly journals Interstellar Molecule Formation; Radiative Association and Exchange Reactions

1971 ◽  
Vol 2 ◽  
pp. 421-428 ◽  
Author(s):  
William Klemperer
Keyword(s):  
Gas Phase ◽  
Interstellar Dust ◽  
Present Report ◽  
Exchange Reactions ◽  
Gas Phase Reactions ◽  
Interstellar Molecule ◽  
Molecule Formation ◽  
Radiative Association ◽  
Made In

The present report is a summary of a study, made in collaboration with P. Solomon, on the formation of interstellar molecules by radiative association and chemical reactions. The model to be discussed is limited practically to gas phase reactions in an HI region, where the principal constituents are atomic. It therefore is limited in scope and applicability. The role of the interstellar dust in this model is passive. It shields the region from radiation. Since a number of molecular species are dissociated by radiation and the extent of carbon ionization is determined by radiation, the radiation density is important in determining compositional equilibria.

scholarly journals Interstellar Molecule Formation

1966 ◽  
Vol 146 ◽  
pp. 88 ◽  
Author(s):  
T. P. Stecher ◽  
D. A. Williams
Keyword(s):  
Interstellar Molecule ◽  
Molecule Formation

Molecule formation in tenuous media: Quantum effects in spontaneous radiative association

1976 ◽  
Vol 13 (1) ◽  
pp. 58-64 ◽  
Author(s):  
David E. Ramaker ◽  
James M. Peek
Keyword(s):  
Quantum Effects ◽  
Molecule Formation ◽  
Radiative Association

scholarly journals Experimental Measurements of Ion-Molecule Reactions

1980 ◽  
Vol 87 ◽  
pp. 291-296
Author(s):  
F. C. Fehsenfeld
Keyword(s):  
Rate Constants ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Interstellar Molecule ◽  
Reaction Rate Constants ◽  
Molecule Reaction ◽  
Radiative Processes ◽  
Ion Molecule Reactions ◽  
Radiative Association ◽  
Three Body

The applicability of ion-molecule reaction rate constants measured at room temperature to simulation of interstellar cloud chemistry is discussed. Three-body association-rate constants of C+ and NH+3 have been measured between 100 K and 300 K. These results give information about the same associations by radiative processes. Possible implications for interstellar molecule production by radiative association and free radical reaction are discussed.

scholarly journals Interstellar Molecule Formation.

1966 ◽  
Vol 71 ◽  
pp. 399
Author(s):  
Theodore P. Stecher ◽  
David A. Williams
Keyword(s):  
Interstellar Molecule ◽  
Molecule Formation

scholarly journals Formation of the BeH+ and BeD+ Molecules in Be+ + H/D Collisions Through Radiative Association

2021 ◽  
Vol 8 ◽  
Author(s):  
Péter Szabó ◽  
Szabolcs Góger ◽  
Magnus Gustafsson
Keyword(s):  
Cross Sections ◽  
Local Thermodynamic Equilibrium ◽  
Kinetic Modelling ◽  
Rate Coefficients ◽  
Mechanical Perturbation ◽  
Equilibrium Limit ◽  
Molecule Formation ◽  
Radiation Fields ◽  
Radiative Association ◽  
Strong Radiation

Cross sections and rate coefficients for the formation of BeH+ and BeD+ molecules in Be+ + H/D collisions through radiative association are calculated using quantum mechanical perturbation theory and Breit-Wigner theory. The local thermodynamic equilibrium limit of the molecule formation is also studied, since the process is also relevant in environments with high-density and/or strong radiation fields. The obtained rate coefficients may facilitate the kinetic modelling of BeH+/BeD+ production in astrochemical environments as well as the corrosion chemistry of thermonuclear fusion reactors.

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