J/A+A/388/704 Al I & Al II absolute transition probabilities (Vujnovic+, 2002)
Absolute transition probabilities of Al I and Al II spectral lines and
intensity ratios within multiplets.
Vujnovic V., Blagoev K., Fuerboeck C., Neger T., Jaeger H.
<Astron. Astrophys. 388, 704 (2002)>
=2002A&A...388..704V 2002A&A...388..704V
ADC_Keywords: Atomic physics
Keywords: atomic data - lines: formation - methods: laboratory
Abstract:
Relative intensity measurements of Al I and Al II spectral lines in
the visible and ultraviolet spectral ranges are performed using a
capacitively coupled high frequency double hollow electrode discharge.
Branching ratios and intensity ratios within multiplets are
determined. By using selected lifetimes absolute transition
probabilities are calculated.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 109 29 Al I-intensity ratios within multiplets, and
transition probabilities for the simple part of
the Grotrian diagram
table3.dat 58 22 Al I-intensity ratios within multiplets for the
complex part of the Grotrian diagram.
table4.dat 58 24 Al II-intensity ratios within multiplets
table5.dat 68 31 Al II-branching ratios and transition probabilities
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 20 A20 --- ULevel Upper level (1)
22- 36 A15 --- LLevel Lover level
38- 46 F9.3 0.1nm Lambda Wavelength
48 A1 --- l_IntR [~] Limit flag on IntR
49- 52 F4.2 --- IntR ? Measured intensity ratio
54- 55 I2 % e_IntR ? Uncertainty percentage on intensity ratio
57- 60 F4.2 --- LS LS intensity ratio
62- 66 F5.3 --- BranR ? Measured branching ratio
67- 68 I2 % e_BranR ? Uncertainty percentage on branching ratio
70 A1 --- l_Aki Limit flag on Aki
71- 75 F5.3 10+8s-1 Aki This work transition probability
76 A1 --- n_Aki [)] Uncertainty flag on Aki
77 A1 --- leAki Limit flag on e_Aki
78- 79 I2 % e_Aki ? Uncertainty percentage on transition
probability
81- 85 F5.3 10+8s-1 AkiO ? Other authors transition probability
87-126 A40 --- r_AkiO Reference for AkiO (2)
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Note (1): According to Kaufman and Martin (Kaufman & Martin, 1991,
J. Phys. Chem. Ref. Data, 20, 775) the level 3s24d 2D is
designated as y D, and all higher d levels acquire numbers for one
less than previously (5d goes to 4d, and so on).
Note (2): References:
Buurman et al., 1986A&A...164..224B 1986A&A...164..224B
Davidson et al., 1990A&A...238..452D 1990A&A...238..452D
Wiese & Martin, 1980, Transition Probabilities, Part II, Vol. Natl.
Stand. Ref. Data system., Natl. Bur. Std. 68 (Washington DC)
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Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- ULevel Upper level
21- 35 A15 --- LLevel Lower level
37- 44 F8.3 0.1nm lambda Wavelength
46- 49 F4.2 --- IntR Measured intensity ratio
51- 52 I2 % e_IntR ? Uncertainty percentage on intensity ratio
54- 57 F4.2 --- LS ? LS intensity ratio
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- ULevel Upper level
15- 27 A13 --- LLevel Lower level
29- 36 F8.3 0.1nm Lambda Wavelength
37 A1 --- n_Lambda [*] Note on Lambda (1)
38 A1 --- l_BranR [~] Limit flag on BranR
39- 42 F4.2 --- BranR ? Branching ratio
44- 46 I3 % e_BranR ? Uncertainty percentage on BranR
48 A1 --- l_Aki Limit flag on Aki
49- 55 E7.4 10+8s-1 Aki ? This work transition probability
58 A1 --- leAki Limit flag on e_Aki
59- 60 I2 % e_Aki ? Uncertainty percentage on Aki
62- 66 F5.3 10+8s-1 AkiO ? Chang & Wang (1987, Phys. Rev. A, 36, 3535)
transition probability
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Note (1): *: The value for the transition probability of the Al II 3900.675Å
line was taken over from the work of Tayal & Hibbert (1984, J. Phys.
B, 17, 3835) (for procedure see discussion in text).
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Table 1: Lifetimes (tau) of neutral and ionized aluminium. If more than one
source is cited, an average of the lifetimes was taken.
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Ion Level des. tau/ns Source
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Al I 3s24s 4S1/2 6.85(6) Buurman et al. (1986), Klose (1997)
Al I 3s25s 4S1/2 19.8(5) Buurman et al. (1986)
Al I 3s24p 2Po1/2_ 60.5(9) Buurmann & Doenszelmann (1990)
Al I 3s24p 2Po3/2_ 65.(2) Buurmann & Doenszelmann (1990)
Al I 3s25p 2Po1/2,3/2_ 275.(8) Buurman et al. (1986)
Al I 3s23d 2D3/2,5/2 14.0(2) Buurman et al. (1986)
Al I 3s24d 2D3/2,5/2 29.5(7) Buurman et al. (1986)
Al I 3s25d 2D3/2,5/2 13.2(3) Davidson et al. (1990)
Al I 3s26d 2D3/2,5/2 14.0(2) Davidson et al. (1990)
Al II 3p 1Po1 0.690(13) Kernahan et al. (1979), Smith (1970)
Berry et al. (1970),
Head et al. (1976)
Al II 3p 3Po1 302.(2)x103 Trabert et al. (1999)
Al II 4f 3Fo 6.4(5) Andersen et al. (1971)
Al II 5f 3Fo 14.(2) Andersen et al. (1971)
Al II 6f 3Fo 15.(1) Andersen et al. (1971)
Al II 7f 3Fo 5.0(5) Andersen et al. (1971)
Al II 3d 3Fo2,3,4 3.5(3) Andersen et al. (1971)
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Table 6. Al II-transition probabilities (Aki) calculated using results
of other authors. If more than one source is cited, an average of the
transition probabilities was taken.
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Upper Level Lower level lambda Aki Source
Å 108s-1
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3p 3Po1 3s2 1So 2669.157 3.3x10-5 1% Trabert et al. (1999)
Johnson et al. (1986)
3p 1Po1 3s2 1So 1670.787 14.5 Kernahan et al. (1979)
Smith (1970)
Berry et al. (1970)
Head et al. (1976)
4s 1So 3p 1Po1 2816.185 3.80 5% Tayal & Hibbert (1984)
Weiss (1967)
3d 1D2 3p 1Po1 1990.531 13.8 10% Tayal & Hibbert (1984)
Weiss (1967), Zare (1967)
Froese-Fischer &
Godefroid (1982)
4p 1Po1 3p2 1D2 4663.056 0.575 5% Tayal & Hibbert (1984)
Zare (1967)
Victor et al. (1976)
Chang & Wang (1987)
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History:
From electronic version of the journal
References:
Andersen et al., 1971, Phys. Scri., 4, 52
Berry et al., 1970, Phys. Scri., 1, 181
Buurman et al., 1986A&A...164..224B 1986A&A...164..224B
Buurmann & Doenszelmann, 1990A&A...227..289B 1990A&A...227..289B
Chang & Wang, 1987, Phys. Rev. A, 36, 3535
Davidson et al., 1990A&A...238..452D 1990A&A...238..452D
Froese-Fischer & Godefroid, 1982, Nucl. Instrum. Meth., 202, 307
Head et al., 1976, in Atomic Structure and Lifetimes,
ed. F. A. Sellin, & D. J. Pegg (NY: Plenum), 147
Johnson et al., 1986ApJ...308.1013J 1986ApJ...308.1013J
Kernahan et al., 1979, Phys. Scri., 19, 267
Klose, 1997, Phys. Rev. A, 19, 678
Smith, 1970, NIM, 90, 115
Tayal & Hibbert, 1984, J. Phys. B, 17, 3835
Trabert et al., 1999, J. Phys. B, 32, 637
Victor et al., 1976ApJs...31..237V 1976ApJs...31..237V
Weiss, 1967, Phys. Rev. A, 9, 1525
Zare, 1967, J. Chem. Phys., 47, 3561
(End) Patricia Bauer [CDS] 31-May-2002