J/A+A/572/A103 Inelastic silicon-hydrogen collision data (Belyaev+, 2014)
Inelastic silicon-hydrogen collision data for non-LTE applications in stellar
atmospheres.
Belyaev A.K., Yakovleva S.A.., Barklem P.S.
<Astron. Astrophys. 572, A103 (2014)>
=2014A&A...572A.103B 2014A&A...572A.103B
ADC_Keywords: Atomic physics
Keywords: atomic data - line: formation - stars: abundances
Abstract:
Inelastic processes in low-energy Si+H and Si++H- collisions are
treated for the states from the ground state up to the ionic state, in
order to provide rate coefficients needed for non-LTE modeling of Si
in cool stellar atmospheres.
Electronic molecular structure is determined using a recently proposed
model approach based on an asymptotic method in combination with
available ab initio potentials. Nonadiabatic nuclear dynamics are
treated by means of a combination of multichannel formulas and the
branching-probability-current method, based on the Landau-Zener model
for nonadiabatic transition probabilities.
Description:
Rate coefficients in cm3/s for inelastic Si+H and Si++H-
collisions for temperatures from T=1000K to T=10000K.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
rt_1000.dat 281 27 Rate coefficients at T=1000K (table 2)
rt_2000.dat 281 27 Rate coefficients at T=2000K (table 3)
rt_3000.dat 281 27 Rate coefficients at T=3000K (table 4)
rt_4000.dat 281 27 Rate coefficients at T=4000K (table 5)
rt_5000.dat 281 27 Rate coefficients at T=5000K (table 6)
rt_6000.dat 281 27 Rate coefficients at T=6000K (table 7)
rt_7000.dat 281 27 Rate coefficients at T=7000K (table 8)
rt_8000.dat 281 27 Rate coefficients at T=8000K (table 8)
rt_9000.dat 281 27 Rate coefficients at T=9000K (table 10)
rt_10000.dat 281 27 Rate coefficients at T=10000K (table 11)
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Byte-by-byte Description of file: rt_*.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- State Initial state of Si in collisions
with H or ionic state
14- 21 E8.3 cm+3/s RC1 Rate coefficient for transition to
Si(3p2 3P) + H
24- 31 E8.3 cm+3/s RC2 Rate coefficient for transition to
Si(3p2 1D) + H
34- 41 E8.3 cm+3/s RC3 Rate coefficient for transition to
Si(3p2 1S) + H
44- 51 E8.3 cm+3/s RC4 rate coefficient for transition to
Si(3p4s 3P) + H
54- 61 E8.3 cm+3/s RC5 Rate coefficient for transition to
Si(3p4s 1P) + H
64- 71 E8.3 cm+3/s RC6 Rate coefficient for transition to
Si(3s3p3 3D) + H
74- 81 E8.3 cm+3/s RC7 Rate coefficient for transition to
Si(3p4p 1P) + H
84- 91 E8.3 cm+3/s RC8 Rate coefficient for transition to
Si(3p3d 1D) + H
94-101 E8.3 cm+3/s RC9 Rate coefficient for transition to
Si(3p4p 3D) + H
104-111 E8.3 cm+3/s RC10 Rate coefficient for transition to
Si(3p4p 3P) + H
114-121 E8.3 cm+3/s RC11 Rate coefficient for transition to
Si(3p4p 3S) + H
124-131 E8.3 cm+3/s RC12 Rate coefficient for transition to
Si(3p3d 3F) + H
134-141 E8.3 cm+3/s RC13 Rate coefficient for transition to
Si(3p4p 1D) + H
144-151 E8.3 cm+3/s RC14 Rate coefficient for transition to
Si(3p3d 3P) + H
154-161 E8.3 cm+3/s RC15 Rate coefficient for transition to
Si(3p4p 1S) + H
164-171 E8.3 cm+3/s RC16 Rate coefficient for transition to
Si(3p3d 1F) + H
174-181 E8.3 cm+3/s RC17 Rate coefficient for transition to
Si(3p3d 1P) + H
184-191 E8.3 cm+3/s RC18 Rate coefficient for transition to
Si(3p3d 3D) + H
194-201 E8.3 cm+3/s RC19 Rate coefficient for transition to
Si(3p5s 3P) + H
204-211 E8.3 cm+3/s RC20 Rate coefficient for transition to
Si(3p5s 1P) + H
214-221 E8.3 cm+3/s RC21 Rate coefficient for transition to
Si(3p4d 1D) + H
224-231 E8.3 cm+3/s RC22 Rate coefficient for transition to
Si(3p4d 3P) + H
234-241 E8.3 cm+3/s RC23 Rate coefficient for transition to
Si(3p5p 1P) + H
244-251 E8.3 cm+3/s RC24 Rate coefficient for transition to
Si(3p5p 3D) + H
254-261 E8.3 cm+3/s RC25 Rate coefficient for transition to
Si(3p5p 3P) + H
264-271 E8.3 cm+3/s RC26 Rate coefficient for transition to
Si(3p4d 3F) + H
274-281 E8.3 cm+3/s RC27 Rate coefficient for transition to
Si+ + H-
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Acknowledgements:
A.K. Belyaev, andrey.k.belyaev(at)gmail.com
(End) Andrey Belyaev [Uppsala University], Patricia Vannier [CDS] 26-Sep-2014