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Detailed Description of J/A+AS/135/359
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Individual files can be fetched (via http) from
here
or via ftp from: ftp://cdsarc.u-strasbg.fr/pub/cats/J/A+AS/135/359
The catalogue can be queried from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+AS/135/359
This standardized document follows the rules of the Standard Description for Astronomical Catalogues. For those having to work on this catalogue using FORTRAN programs, this ReadMe file can be transformed into a f77-compliant program which reads the files making up this catalogue, in two versions: either a f77 program loading whole files into arrays, or a f77-program reading each data file line by line.
J/A+AS/135/359 HI and HeII fine structure components (Clegg+ 1999)
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Recombination line intensities for hydrogenic ions:
the fine structure components of HI and HeII
Clegg R.E.S., Miller S., Storey P.J., Kisielius R.
<Astron. Astrophys. Suppl. Ser. 135, 359 (1999)>
=1999A&AS..135..359C
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ADC_Keywords: Atomic physics
Keywords: atomic data - line: formation - line: profiles - H II regions -
planetary nebulae: general
Abstract:
Emissivities have been calculated for fine-structure components of
selected UV and optical recombination lines of HI and HeII. Results
are given for a range of electron temperatures and densities, and in
Cases A and B of Baker & Menzel (1938ApJ....88...52B). Relative
intensities, wavelengths and velocity shifts of the fine-structure
components are tabulated. Applications to the spectra of gaseous
nebulae are discussed. Depending on the temperature, density and Case,
the centres of unresolved lines can shift by up to 0.9km/s for HI and
3.3km/s for HeII. A new calibration of the H{alpha}-NII method for
determining electron temperatures is given.
File Summary:
FileName Lrecl Records Explanations
× ReadMe 80 . This file
× table1.dat 74 15 Summary of components, and the reference
wavelengths of hydrogenic transitions
× table2a.dat 64 7 Fine structure components for n-2 transitions
× table2b.dat 64 13 Fine structure components for n-3 transitions
× tab34.dat 66 652 Normalized component intensities
× table5.dat 78 76 Line emissivities
× table6.dat 77 76 Line centre positions
× table7.dat 33 23 H{alpha} full line widths and broadening
terms {delta}
See also:
VI/64 : Recombination line intensities for hydrogenic ions (Storey+ 1995)
J/A+AS/133/257 : Recombination coefficients for NeII lines (Kisielius+ 1998)
J/A+AS/137/157 : O III recombination coefficients (Kisielius+, 1999)
J/A+AS/142/85 : Recombination coefficients for C II lines (Davey+, 2000)
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
2 I1 --- nu Upper state principal quantum number
6 I1 --- nl Lower state principal quantum number
11- 12 I2 --- Nc Number of components
16- 19 F4.2 km/s D(v)HI Total range in velocity space of components
for HI lines
22- 26 F5.2 km/s D(v)HeII Total range in velocity space of components
for HeII lines
29- 38 F10.4 0.1nm 1HI Reference wavelength for 1HI
41- 50 F10.4 0.1nm 2HI Reference wavelength for 2HI
53- 62 F10.4 0.1nm 3HeII Reference wavelength for 3HeII
65- 74 F10.4 0.1nm 4HeII Reference wavelength for 4HeII
Byte-by-byte Description of file: table2[ab].dat
Bytes Format Units Label Explanations
2- 3 I2 --- Index Index of transition
7- 8 A2 --- Stateu Upper state nl in spectroscopic notation
12 I1 --- Su 2S+1 of upper state term
15 A1 --- Lu L (spectroscopic) of upper state term
18 I1 --- Pu Parity (0 for even, 1 for odd) of upper state term
21- 23 F3.1 --- Ju J of upper state term
29- 30 A2 --- Statel Lower state nl in spectroscopic notation
34 I1 --- Sl 2S+1 of lower state term
37 A1 --- Ll L (spectroscopic) of lower state term
40 I1 --- Pl Parity (0 for even, 1 for odd) of lower state term
43- 45 F3.1 --- Jl J of lower state term
49 I1 --- lu Orbital quantum number l of upper state
54 I1 --- 2ju Double total quantum number 2j of upper state
59 I1 --- ll Orbital quantum number l of lower state
64 I1 --- 2jl Double total quantum number 2j of lower state
Byte-by-byte Description of file: tab34.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Comp Component (1)
7 A1 --- Case [AB] Baker & Menzel (1938ApJ....88...52B) case
10- 14 E5.1 cm-3 Ne Electron densityI
17- 18 I2 --- Index Transition index
23- 28 F6.3 0.1nm D(lambda) Shift in wavelength
30- 35 F6.2 km/s D(v) Shift in velocity
37- 41 F5.3 --- I300 ? Normalized component intensity at Te=300K
43- 47 F5.3 --- I1000 Normalized component intensity at Te=1000K
49- 53 F5.3 --- I3000 Normalized component intensity at Te=3000K
55- 59 F5.3 --- I10000 Normalized component intensity at Te=10000K
61- 65 F5.3 --- I30000 Normalized component intensity at Te=30000K
Note (1): H{alpha}: H3-2, reference wavelength 6562.8812Å
H{beta}: H4-2, reference wavelength 4861.3784Å
H{gamma}: H5-2, reference wavelength 4340.5086Å
He II: He3-2, reference wavelength 1640.5055Å
He4-2, reference wavelength 1215.1893Å
He4-3, reference wavelength 4685.8471Å
He5-3, reference wavelength 3203.1867Å
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 4 A4 --- Comp Component
6 A1 --- Case [AB] Baker & Menzel (1938ApJ....88...52B) case
9 I1 --- nu Upper state principal quantum number
12 A1 --- --- [-]
15 I1 --- nl Lower state principal quantum number
18- 22 E5.1 cm-3 Ne Electron density
25- 33 E9.3 mW/m2/cm I300 ? Line emissivity at Te=300K
36- 44 E9.3 mW/m2/cm I1000 Line emissivity at Te=1000K
47- 55 E9.3 mW/m2/cm I3000 Line emissivity at Te=3000K
58- 66 E9.3 mW/m2/cm I10000 Line emissivity at Te=10000K
69- 77 E9.3 mW/m2/cm I30000 Line emissivity at Te=30000K
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 4 A4 --- Comp Component
6 A1 --- Case [AB] Baker & Menzel (1938ApJ....88...52B) case
9 I1 --- nu Upper state principal quantum number
12 A1 --- --- [-]
15 I1 --- nl Lower state principal quantum number
18- 22 E5.1 cm-3 Ne Electron density
25- 33 F9.4 0.1nm I300 ? Line centre positions at Te=300K
36- 44 F9.4 0.1nm I1000 Line centre positions at Te=1000K
47- 55 F9.4 0.1nm I3000 Line centre positions at Te=3000K
58- 66 F9.4 0.1nm I10000 Line centre positions at Te=10000K
69- 77 F9.4 0.1nm I30000 Line centre positions at Te=30000K
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 5 F5.1 km/s vbroad Full line width at half maximum excluding
fine-structure effects
8- 13 F6.2 km/s FWHM Full line width at half maximum including
fine-structure effects
17- 22 F6.3 km/s delta Broadening term {delta}
Acknowledgements: Romas Kisielius
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(End) Patricia Bauer [CDS] 17-Nov-1998
