J/A+A/416/383 Transition probabilities for Fe XVIII (Jonauskas+, 2004)
Relativistic allowed and forbidden transition probabilities for
fluorine-like Fe XVIII.
Jonauskas V., Keenan F.P., Foord M.E., Heeter R.F., Rose S.J.,
van Hoof P.A.M., Ferland G.J., Aggarwal K.M., Kisielius R., Norrington P.H.
<Astron. Astrophys. 416, 383 (2004)>
=2004A&A...416..383J 2004A&A...416..383J
ADC_Keywords: Atomic physics
Keywords: atomic data
Abstract:
Energy levels and the corresponding transition probabilities as well
oscillator strengths and line strengths for allowed (E1) and forbidden
(E2, M1) transitions among the lowest 379 levels of fluorine-like Fe
XVIII are presented. Calculations were performed using the
multiconfigurational Dirac-Fock GRASP code.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 144 379 List of levels and the two largest transition
probabilities as well as summed probability from
level
table6.dat 66 5750 E1-type transitions
table7.dat 66 2631 E2-type transitions
table8.dat 58 951 E3-type transitions
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See also:
VI/72 : Atomic Transition Probabilities, Sc-Ni (NIST 1993)
J/A+AS/101/1 : Transition probabilities in FeIII (Ekberg 1993)
J/A+AS/116/573 : Transitions for FeIII (Quinet 1996)
J/A+A/293/967 : IRON Project. FeII radiative transitions (Nahar, 1995)
J/A+A/377/361 : Fe II transition probabilities and loggf (Pickering+, 2001)
J/A+AS/119/509 : IRON Project. Radiative transition in Fe III (Nahar+, 1996)
J/A+AS/120/361 : IRON Project. Fe II radiative transitions (Quinet+ 1996)
J/A+AS/144/141 : Iron Project. Fe V transition probabilities (Nahar+, 2000)
J/A+AS/147/111 : Iron Project. Fe VI transition probabilities (Chen+, 2000)
J/A+AS/147/253 : IRON Project. Fe XXI transition probabilities (Nahar, 2000)
J/A+A/399/799 : Fe XI effective collision strengths (Aggarwal+, 2003)
J/A+A/408/789 : IRON Project. Fe XVII transition probabilities (Nahar+, 2003)
J/A+A/410/349 : Fe XV effective collision strengths (Aggarwal+, 2003)
J/A+A/418/371 : Fe XIII electron impact excitation (Aggarwal+, 2004)
J/A+A/420/783 : Fe XVII electron impact excitation (Aggarwal+, 2004)
J/A+A/427/763 : Fe X E1, E2,M1 and M2 transitions (Aggarwal+, 2004)
J/A+A/416/383 : Fe XVIII transition probabilities (Jonauskas+, 2004)
J/A+A/439/1215 : Fe X effective collision strengths (Aggarwal+, 2005)
J/A+A/429/1117 : Fe XIII effective collision strengths (Aggarwal+, 2005)
J/A+A/450/1249 : Fe XVI radiative and excitation rates (Aggarwal+, 2006)
J/A+A/460/331 : Fe IX radiative and excitation rates (Aggarwal+, 2006)
J/A+A/463/399 : Fe XVI radiative rates (Aggarwal+, 2007)
J/A+A/484/879 : Fe XXVII radiative and excitation rates (Aggarwal+, 2008)
Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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3- 5 I3 --- Index Index of level
9- 66 A58 --- Config Configuration assigned to level
72- 80 A9 --- LSJ Term assigned to level and J
82- 84 I3 --- IndexLSJ ? Index of lowest level with the same
LSJ notation
88- 98 F11.0 cm-1 E Energy of level with respect to ground
level (1)
101-103 I3 --- Index1 ? Index of level to which transition
occurs with largest probability (2)
107-114 E8.2 s-1 A1 ? Transition probability to level (2)
117-119 I3 --- Index2 ? Index of level to which transition occurs
with smaller probability compared with
largest one (2)
123-130 E8.2 s-1 A2 ? Transition probability to level (2)
134-141 E8.2 s-1 A ? Sum of all radiative probabilities from level
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Note (1): Absolute value of energy is only given for ground level
Note (2): The two largest spontaneous radiative transition probabilities
from each level are given
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Byte-by-byte Description of files: table6.dat table7.dat table8.dat
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Bytes Format Units Label Explanations
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3- 5 I3 --- Index2 Index of lower level
8- 10 I3 --- Index1 Index of upper level
15- 22 E8.2 0.1nm E Transition energy
27- 34 E8.2 s-1 A Radiative transition probability
39- 46 E8.2 --- f Absorption oscillator strength
51- 58 E8.2 --- S Transition strength (length form),
in arbitrary units
61- 66 F6.2 --- Vel/Len ? Ratio between velocity and length forms of
transition operator (not in table8.dat)
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Acknowledgements: Jonauskas Valdas
(End) Jonauskas [Queen's University of Belfast] 11-Dec-2003