J/A+A/593/A27 Inelastic beryllium-hydrogen collision data (Yakovleva+, 2016)
Atomic data on inelastic processes in low-energy beryllium-hydrogen collisions.
Yakovleva S.A, Voronov Ya.V, Belyaev A.K.
<Astron. Astrophys. 593, A27 (2016)>
=2016A&A...593A..27Y 2016A&A...593A..27Y (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics
Keywords: atomic data - line: formation - stars: abundances
Abstract:
Inelastic processes in low-energy Be+H and Be++H- collisions are
treated for the states from the ground state up to the ionic state,
with the aim to provide rate coefficients needed for non-LTE modeling
of beryllium spectra in cool stellar atmospheres.
The electronic molecular structure is determined by using a recently
proposed model quantum approach that is based on an asymptotic method.
Nonadiabatic nuclear dynamics is treated by means of multichannel
formulas, based on the Landau-Zener model for nonadiabatic transition
probabilities.
Description:
Rate coefficients in cm3/s for inelastic Be+H and Be++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 153 14 Rate coefficients at T=1000K (table A1)
rt_2000.dat 153 14 Rate coefficients at T=2000K (table A2)
rt_3000.dat 153 14 Rate coefficients at T=3000K (table A3)
rt_4000.dat 153 14 Rate coefficients at T=4000K (table A4)
rt_5000.dat 153 14 Rate coefficients at T=5000K (table A5)
rt_6000.dat 153 14 Rate coefficients at T=6000K (table A6)
rt_7000.dat 153 14 Rate coefficients at T=7000K (table A7)
rt_8000.dat 153 14 Rate coefficients at T=8000K (table A8)
rt_9000.dat 153 14 Rate coefficients at T=9000K (table A9)
rt_10000.dat 153 14 Rate coefficients at T=10000K (table A10)
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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 Be in collisions with H
or ionic state
14- 23 E10.2 cm+3/s RC1 Rate coefficient for transition to Be(2s2 1S)+H
24- 33 E10.2 cm+3/s RC2 Rate coefficient for transition to Be(2s2p 3P)+H
34- 43 E10.2 cm+3/s RC3 Rate coefficient for transition to Be(2s2p 1P)+H
44- 53 E10.2 cm+3/s RC4 Rate coefficient for transition to Be(2s3s 3S)+H
54- 63 E10.2 cm+3/s RC5 Rate coefficient for transition to Be(2s3s 1S)+H
64- 73 E10.2 cm+3/s RC6 Rate coefficient for transition to Be(2p2 1D)+H
74- 83 E10.2 cm+3/s RC7 Rate coefficient for transition to Be(2s3p 3P)+H
84- 93 E10.2 cm+3/s RC8 Rate coefficient for transition to Be(2s3p 1P)+H
94-103 E10.2 cm+3/s RC9 Rate coefficient for transition to Be(2s3d 3D)+H
104-113 E10.2 cm+3/s RC10 Rate coefficient for transition to Be(2s3d 1D)+H
114-123 E10.2 cm+3/s RC11 Rate coefficient for transition to Be(2s4s 3S)+H
124-133 E10.2 cm+3/s RC12 Rate coefficient for transition to Be(2s4s 1S)+H
134-143 E10.2 cm+3/s RC13 Rate coefficient for transition to Be(2s4p 3P)+H
144-153 E10.2 cm+3/s RC14 Rate coefficient for transition to Be++H-
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Acknowledgements:
A.K. Belyaev, andrey.k.belyaev(at)gmail.com
(End) A.K. Belyaev [Herzen University], Patricia Vannier [CDS] 18-Jul-2016