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J/A+AS/103/57 Spectral coefficients of emission and absorption (MIHAJLOV 1994)
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Spectral coefficients of emission and absorption due to ion-atom radiation
collisions in solar atmosphere
MIHAJLOV A.A., DIMITRIJEVIC M.S., IGNJATOVIC L.J.M., DJURIC Z.
<Astron. Astrophys. Suppl. Ser. 103, 57 (1994)>
=1994A&AS..103...57M
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Keywords: sun: atmosphere - radiation mechanisms: thermal - atomic data -
atomic processes
Abstract:
Spectral coefficients of spontaneous emission and absorption (for 365nm <=
{lambda} <= 820nm range) due to ion-atom radiation processes H^+^ + H(1s)
<--> H^+^_2_(1{SIGMA}_g_) and H^+^ + H(1s) <--> H(1s) +H^+^ are presented.
Calculations have been performed within semiclassical approach for standard
solar photosphere and chromosphere models. The presented numerical results
enable the inclusion of considered ion-atom radiative processes in the
optical depth calculation for the layers mentioned. These results might be
of interest as well for other astrophysical plasmas with dominant hydrogen
component and temperatures around 6000 K.
File Summary:
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File Name Lrecl Records Explanations
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ReadMe 80 . This file
table1a 64 45 Basic plasma parameters for solar photospheric
model of Maltby et al. (1986), as a function
of height.
table1b 64 29 Basic plasma parameters for solar chromospheric
model of Vernazza et al. (1981) (model C)
table2a 59 45 Emissivity as a function of wavelength and
height for solar photospheric model of
Maltby et al. (1986).
table2b 59 29 Emissivity as a function of wavelength and
height for solar chromospheric model of
Vernazza et al. (1981)
table3a 59 45 Spectral absorption coefficient as a function
of wavelength and height for solar
photospheric model of Maltby et al. (1986).
table3b 59 29 Spectral absorption coefficient as a function
of wavelength and height for solar
chromospheric model of Vernazza et al. (1981)
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Byte-per-byte Description of file: table1a
Byte-per-byte Description of file: table1b
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Bytes Format Units Label Explanations
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5- 10 F6.1 km h Height
14- 19 F6.1 K T Plasma temperature
22- 32 E11.4 cm-3 Ne Electron density
34- 44 E11.4 cm-3 Nth Total hydrogen density
46- 55 E10.3 --- eta_e1 (N(H+)/NE)*(N(H)/Ni) ratio (1)
57- 66 E10.3 --- eta_ea N(H+)/Ne ratio (1)
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Note1:
N(H+) is the proton density,
Ni is the total density of positive atomic ions and
N(H) is the atom (H(1s)) density
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Byte-per-byte Description of file: table2a
Byte-per-byte Description of file: table2b
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Bytes Format Units Label Explanations
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1- 6 F6.1 km h Height
7- 15 E9.3 W/cm3/nm e365 Emissivity at 365 nm
16- 24 E9.3 W/cm3/nm e400 Emissivity at 400 nm
25- 33 E9.3 W/cm3/nm e500 Emissivity at 500 nm
34- 42 E9.3 W/cm3/nm e600 Emissivity at 600 nm
43- 51 E9.3 W/cm3/nm e700 Emissivity at 700 nm
52- 60 E9.3 W/cm3/nm e820 Emissivity at 820 nm
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Byte-per-byte Description of file: table3a
Byte-per-byte Description of file: table3b
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Bytes Format Units Label Explanations
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1- 6 F6.1 km h Height
7- 15 E9.3 cm-1 K365 Spectral absorption coefficient at 365 nm
16- 24 E9.3 cm-1 K400 Spectral absorption coefficient at 400 nm
25- 33 E9.3 cm-1 K500 Spectral absorption coefficient at 500 nm
34- 42 E9.3 cm-1 K600 Spectral absorption coefficient at 600 nm
43- 51 E9.3 cm-1 K700 Spectral absorption coefficient at 700 nm
52- 60 E9.3 cm-1 K820 Spectral absorption coefficient at 820 nm
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(End) Francois Ochsenbein [CDS] 17-Nov-1993