Access to Astronomical Catalogues

← Click to display the menu
J/A+A/606/A147          Heavy particle-hydrogen collisions      (Belyaev+, 2017)

Estimating inelastic heavy-particle-hydrogen collision data. I. Simplified model and application to potassium-hydrogen collisions. Belyaev A.K., Yakovleva S.A. <Astron. Astrophys. 606, A147 (2017)> =2017A&A...606A.147B (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics Keywords: atomic data - atomic processes - stars: atmospheres Abstract: We derive a simplified model for estimating atomic data on inelastic processes in low-energy collisions of heavy-particles with hydrogen, in particular for the inelastic processes with high and moderate rate coefficients. It is known that these processes are important for non-LTE modeling of cool stellar atmospheres. Rate coefficients are evaluated using a derived method, which is a simplified version of a recently proposed approach based on the asymptotic method for electronic structure calculations and the Landau-Zener model for nonadiabatic transition probability determination. The rate coefficients are found to be expressed via statistical probabilities and reduced rate coefficients. It turns out that the reduced rate coefficients for mutual neutralization and ion-pair formation processes depend on single electronic bound energies of an atom, while the reduced rate coefficients for excitation and de-excitation processes depend on two electronic bound energies. The reduced rate coefficients are calculated and tabulated as functions of electronic bound energies. The derived model is applied to potassium-hydrogen collisions. For the first time, rate coefficients are evaluated for inelastic processes in K+H and K+ + H- collisions for all transitions from ground states up to and including ionic states. Description: Rate coefficients in cm3%/s for neutralization and de-excitation processes in heavy-particle collisions with hydrogen for temperatures from T=1000K to T=10000K. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file n1000.dat 20 81 Neutralization rate coefficients at T=1000K n2000.dat 20 81 Neutralization rate coefficients at T=2000K n3000.dat 20 81 Neutralization rate coefficients at T=3000K n4000.dat 20 81 Neutralization rate coefficients at T=4000K n5000.dat 20 81 Neutralization rate coefficients at T=5000K n6000.dat 20 81 Neutralization rate coefficients at T=6000K n7000.dat 20 81 Neutralization rate coefficients at T=7000K n8000.dat 20 81 Neutralization rate coefficients at T=8000K n9000.dat 20 81 Neutralization rate coefficients at T=9000K n10000.dat 20 81 Neutralization rate coefficients at T=10000K d1000.dat 420 41 De-excitation rate coefficients at T=1000K d2000.dat 420 41 De-excitation rate coefficients at T=2000K d3000.dat 420 41 De-excitation rate coefficients at T=3000K d4000.dat 420 41 De-excitation rate coefficients at T=4000K d5000.dat 420 41 De-excitation rate coefficients at T=5000K d6000.dat 420 41 De-excitation rate coefficients at T=6000K d7000.dat 420 41 De-excitation rate coefficients at T=7000K d8000.dat 420 41 De-excitation rate coefficients at T=8000K d9000.dat 420 41 De-excitation rate coefficients at T=9000K d10000.dat 420 41 De-excitation rate coefficients at T=10000K
See also: J/A+A/572/A103 : Inelastic silicon-hydrogen collision data (Belyaev+, 2014) J/MNRAS/449/3323 : (Li-He)+ collisions non-radiative processes (Belyaev+, 2015) J/A+A/587/A114 : Inelastic calcium-hydrogen collision data (Belyaev+, 2016) J/A+A/593/A27 : Inelastic beryllium-hydrogen collision data (Yakovleva+, 2016) Byte-by-byte Description of file: n*.dat
Bytes Format Units Label Explanations
1- 10 E10.2 eV Ef Electron bound energy for the final state 11- 20 E10.2 cm3/s RC Neutralization rate coefficient for transition to state Ef
Byte-by-byte Description of file: d*.dat
Bytes Format Units Label Explanations
1- 10 E10.2 eV Ei Electron bound energy for the initial state 11- 20 E10.2 cm3/s RC1 De-excitation rate coefficient for transition to state Ef=-5.001eV 21- 30 E10.2 cm3/s RC2 De-excitation rate coefficient for transition to state Ef=-4.901eV 31- 40 E10.2 cm3/s RC3 De-excitation rate coefficient for transition to state Ef=-4.801eV 41- 50 E10.2 cm3/s RC4 De-excitation rate coefficient for transition to state Ef=-4.701eV 51- 60 E10.2 cm3/s RC5 De-excitation rate coefficient for transition to state Ef=-4.601eV 61- 70 E10.2 cm3/s RC6 De-excitation rate coefficient for transition to state Ef=-4.501eV 71- 80 E10.2 cm3/s RC7 De-excitation rate coefficient for transition to state Ef=-4.401eV 81- 90 E10.2 cm3/s RC8 De-excitation rate coefficient for transition to state Ef=-4.301eV 91-100 E10.2 cm3/s RC9 De-excitation rate coefficient for transition to state Ef=-4.201eV 101-110 E10.2 cm3/s RC10 De-excitation rate coefficient for transition to state Ef=-4.101eV 111-120 E10.2 cm3/s RC11 De-excitation rate coefficient for transition to state Ef=-4.001eV 121-130 E10.2 cm3/s RC12 De-excitation rate coefficient for transition to state Ef=-3.901eV 131-140 E10.2 cm3/s RC13 De-excitation rate coefficient for transition to state Ef=-3.801eV 141-150 E10.2 cm3/s RC14 De-excitation rate coefficient for transition to state Ef=-3.701eV 151-160 E10.2 cm3/s RC15 De-excitation rate coefficient for transition to state Ef=-3.601eV 161-170 E10.2 cm3/s RC16 De-excitation rate coefficient for transition to state Ef=-3.501eV 171-180 E10.2 cm3/s RC17 De-excitation rate coefficient for transition to state Ef=-3.401eV 181-190 E10.2 cm3/s RC18 De-excitation rate coefficient for transition to state Ef=-3.301eV 191-200 E10.2 cm3/s RC19 De-excitation rate coefficient for transition to state Ef=-3.201eV 201-210 E10.2 cm3/s RC20 De-excitation rate coefficient for transition to state Ef=-3.101eV 211-220 E10.2 cm3/s RC21 De-excitation rate coefficient for transition to state Ef=-3.001eV 221-230 E10.2 cm3/s RC22 De-excitation rate coefficient for transition to state Ef=-2.901eV 231-240 E10.2 cm3/s RC23 De-excitation rate coefficient for transition to state Ef=-2.801eV 241-250 E10.2 cm3/s RC24 De-excitation rate coefficient for transition to state Ef=-2.701eV 251-260 E10.2 cm3/s RC25 De-excitation rate coefficient for transition to state Ef=-2.601eV 261-270 E10.2 cm3/s RC26 De-excitation rate coefficient for transition to state Ef=-2.501eV 271-280 E10.2 cm3/s RC27 De-excitation rate coefficient for transition to state Ef=-2.401eV 281-290 E10.2 cm3/s RC28 De-excitation rate coefficient for transition to state Ef=-2.301eV 291-300 E10.2 cm3/s RC29 De-excitation rate coefficient for transition to state Ef=-2.201eV 301-310 E10.2 cm3/s RC30 De-excitation rate coefficient for transition to state Ef=-2.101eV 311-320 E10.2 cm3/s RC31 De-excitation rate coefficient for transition to state Ef=-2.001eV 321-330 E10.2 cm3/s RC32 De-excitation rate coefficient for transition to state Ef=-1.901eV 331-340 E10.2 cm3/s RC33 De-excitation rate coefficient for transition to state Ef=-1.801eV 341-350 E10.2 cm3/s RC34 De-excitation rate coefficient for transition to state Ef=-1.701eV 351-360 E10.2 cm3/s RC35 De-excitation rate coefficient for transition to state Ef=-1.601eV 361-370 E10.2 cm3/s RC36 De-excitation rate coefficient for transition to state Ef=-1.501eV 371-380 E10.2 cm3/s RC37 De-excitation rate coefficient for transition to state Ef=-1.401eV 381-390 E10.2 cm3/s RC38 De-excitation rate coefficient for transition to state Ef=-1.301eV 391-400 E10.2 cm3/s RC39 De-excitation rate coefficient for transition to state Ef=-1.201eV 401-410 E10.2 cm3/s RC40 De-excitation rate coefficient for transition to state Ef=-1.101eV 411-420 E10.2 cm3/s RC41 De-excitation rate coefficient for transition to state Ef=-1.001eV
Acknowledgements: A.K. Belyaev, andrey.k.belyaev(at)gmail.com
(End) Andrey Belyaev [Herzen University], Patricia Vannier [CDS] 13-Jul-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact