scholarly journals Clustering and α -capture reaction rate from ab initio symmetry-adapted descriptions of Ne20

2020 ◽  
Vol 102 (4) ◽  
Author(s):  
A. C. Dreyfuss ◽  
K. D. Launey ◽  
J. E. Escher ◽  
G. H. Sargsyan ◽  
R. B. Baker ◽  
...  
Keyword(s):  
Ab Initio ◽  
Reaction Rate ◽  
Capture Reaction

Ab Initio Computation of Thermochemistry and Kinetics in the Oxidation of Gas Phase Silicon Species

1992 ◽  
Vol 282 ◽  
Author(s):  
Michael R. Zachariah ◽  
Wing Tsang
Keyword(s):  
Ab Initio ◽  
Gas Phase ◽  
Energy Barrier ◽  
Reaction Rate ◽  
Rate Theory ◽  
Molecular Orbital Calculations ◽  
Activation Energy Barrier ◽  
Ab Initio Computation ◽  
Oxygen Donor ◽  
Reaction Rate Theory

ABSTRACTAb initio molecular orbital calculations coupled to RRKM reaction rate theory have been conducted on some important reactions involved in the oxidation of silane in a high-temperature/high H2O environment. The results indicate thatH2O acts as an oxygen donor to SiH2 to form H3SiOH or SiH2O. Subsequent reactions involve the formation of (HSiOOH, H2Si(OH)2,:Si(OH)2 or SiO). In turn SiO polymerizes into planar rings, without an activation energy barrier. A list of calculated thermochemical data are also presented for a number of equilibrium species.

scholarly journals Influence of resonances on the 11B(n,γ)12B capture reaction rate. Capture to the ground state of 12B

2020 ◽  
Vol 123 ◽  
pp. 102481
Author(s):  
S.B. Dubovichenko ◽  
N.A. Burkova ◽  
A.V. Dzhazairov-Kakhramanov ◽  
A.S. Tkachenko
Keyword(s):  
Ground State ◽  
Reaction Rate ◽  
Capture Reaction

scholarly journals Constraints on stellar evolution from white dwarf asteroseismology

2014 ◽  
Vol 9 (S307) ◽  
pp. 211-212
Author(s):  
Agnès Bischoff-Kim
Keyword(s):  
Stellar Evolution ◽  
Reaction Rate ◽  
Time Dependent ◽  
High Mass ◽  
Low Mass Stars ◽  
Capture Reaction ◽  
The Core ◽  
Inert Core ◽  
Core Phase ◽  
Low Mass

AbstractHigh mass and low mass stars follow a similar evolution until the inert core phase that follows the end of the core helium burning stage. In particular, one common phase of stellar evolution is the alpha capture reaction that turns carbon into oxygen in the core. We can obtain constraints on this reaction rate by studying the remnants of low mass stars, as this is the ultimate reaction that occurs in their core. We also present results that allow us to test the time dependent calculations of diffusion in dense interiors.

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