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J/A+AS/145/491 Ly{alpha} dipolar emission (Gonzalez, 2000)
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Tables of dipolar emission and two-photon absorption Lyman-{alpha} profiles
Gonzalez M.A., Gigosos M.A.
<Astron. Astrophys. Suppl. Ser. 145, 491 (2000)>
=2000A&AS..145..491G (SIMBAD/NED BibCode)
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ADC_Keywords: Line Profiles ; Atomic physics
Keywords: line profiles - plasmas
Description:
Computer simulation techniques have been used to calculate the Stark
broadening profiles of the hydrogen dipolar Lyman-{alpha} transition
and of two-photon absorption, dispersion and polarization profiles in
the 1S->2S transition.
The calculations have considered electron densities in the range
between 4.64*10^19^(m^-3^) and 1*10^23^(m^-3^), and temperatures in
the range between 2000 and 100000K.
The fine structure of level n=2 has been taken into account in the
calculations.
Four different sets of tables are given. The two first sets are the
tables of the autocorrelation function for the dipolar moment of the
emitter and for the operator that gives the transition amplitude for a
two-photon absorption between the 1S and the 2S levels. This tables
have the names rXXnYYYY.c1p and rXXnYYYY.c2p. The .c1p and .c2p
extensions stands for 1 photon dipolar moment and for two-photon
absorption transition amplitude. XX is 100*{rho}, {rho} being the
quotient between the mean distance between particles and the Debye
radius for the conditions of the plasma for which the profiles where
calculated. YYYY is 100*Log(Ne), Ne being the electron density (m^-3^)
of the plasma considered.
The last two sets of tables correspond to the 1 photon Lyman-{alpha}
profiles (rXXnYYYY.d1p) and to two-photon polarization profiles
(rXXnYYYY.p2p).
In each file the results obtained considering perturbers of different
reduced masses ({mu}) are tabulated in different columns.
The caption of each file contains the conditions of electron density
and plasma temperature for which the calculation was made.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
ident.dat 51 280 Initial parameters
c1p.dat 127 17920 Autocorrelation functions for dipolar emission
(tables rXXnYYYY.c1p)
c2p.dat 127 17920 Autocorrelation functions for 2 photon absorption
(tables rXXnYYYY.c2p)
d1p.dat 89 17920 1 photon lyman-{alpha} dipolar emission profiles
(tables rXXnYYYY.d1p)
p2p.dat 89 17920 1S->2S two-photon polarization profiles
(tables rXXnYYYY.p2p)
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Byte-by-byte Description of file: ident.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Ident Identification parameters filename (1)
14- 25 E12.6 m-3 Ne Electronic density
27- 32 I6 K T Temperature
34- 45 E12.6 s Time ? Time step (for r*.c[12]p files)
47- 51 F5.3 --- rho ? rho parameter, i.e. mean distance between
particles by Debye radius.
(for r*.d1p and r*..p2p files) (G1)
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Note (1): For c[12]p files:
Density
Temperature
Time step
For d1p.dat and p2p.dat files:
Electronic density
Plasma temperature
{rho}
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Byte-by-byte Description of file: c1p.dat c2p.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Ident Identification parameters filename
14- 22 E9.3 s t Time in seconds
25- 33 F9.6 --- CR0.5 Autocorrelation function (real part); {mu}=0.5
35- 43 F9.6 --- CI0.5 Autocorrelation function (imag. part); {mu}=0.5
46- 54 F9.6 --- CR0.8 Autocorrelation function (real part); {mu}=0.8
56- 64 F9.6 --- CI0.8 Autocorrelation function (imag. part); {mu}=0.8
67- 75 F9.6 --- CR0.9 Autocorrelation function (real part); {mu}=0.9
77- 85 F9.6 --- CI0.9 Autocorrelation function (imag. part); {mu}=0.9
88- 96 F9.6 --- CR1.0 Autocorrelation function (real part); {mu}=1.0
98-106 F9.6 --- CI1.0 Autocorrelation function (imag. part); {mu}=1.0
109-117 F9.6 --- CR2.0 Autocorrelation function (real part); {mu}=2.0
119-127 F9.6 --- CI2.0 Autocorrelation function (imag. part); {mu}=2.0
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Byte-by-byte Description of file: p2p.dat d1p.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Ident Identification parameters file name
15- 25 E11.4 m DeltaL Displacement in wavelength
28- 37 E10.4 m-1 I0.5 Intensity of the profile for {mu}=0.5
41- 50 E10.4 m-1 I0.8 Intensity of the profile for {mu}=0.8
54- 63 E10.4 m-1 I0.9 Intensity of the profile for {mu}=0.9
67- 76 E10.4 m-1 I1.0 Intensity of the profile for {mu}=1.0
80- 89 E10.4 m-1 I2.0 Intensity of the profile for {mu}=2.0
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Note (G1): The Debye length is defined as
(r_D_)^2^ = kT_e_/(4{pi}e^2^N_e_)
Acknowledgements: Manuel Angel Gonzalez <manu@elsinore.fa2.etit.uva.es>
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(End) Patricia Bauer [CDS] 03-Jul-2000