J/ApJ/667/1267 CrI transition probabilities (Sobeck+, 2007)
Improved laboratory transition probabilities for neutral chromium and
redetermination of the chromium abundance for the Sun and three stars.
Sobeck J.S., Lawler J.E., Sneden C.
<Astrophys. J., 667, 1267-1282 (2007)>
=2007ApJ...667.1267S 2007ApJ...667.1267S
ADC_Keywords: Atomic physics
Keywords: atomic data - stars: abundances - stars: Population II -
Sun: abundances - Sun: general
Abstract:
Branching fraction measurements from Fourier transform spectra in
conjunction with published radiative lifetimes are used to determine
transition probabilities for 263 lines of neutral chromium.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 78 263 Atomic transition probabilities for CrI organized
by increasing wavelength in λair
--------------------------------------------------------------------------------
See also:
J/MNRAS/390/733 : FTS reference UV wavelengths of CrIII (Smillie+, 2008)
J/ApJ/700/720 : The 236.6-5400.0nm spectrum of CrI (Wallace+, 2009)
J/A+A/524/A35 : Effective collision strengths of CrII (Wasson+, 2010)
J/A+A/511/A68 : Transitions of CrII (Gurell+, 2010)
J/ApJS/196/24 : Electron-impact excitation of CrII (Wasson+, 2011)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.2 0.1nm lambda Wavelength in air in Angstroms
9- 16 F8.2 cm-1 EU Upper level energy
18- 25 A8 --- TermU Upper level term
27 I1 --- JU [0/6] Upper level J value
29- 36 F8.2 cm-1 EL Lower level energy
38- 45 A8 --- TermL Lower level term
47 I1 --- JL [0/6] Lower level J value
49 A1 --- N [N] Normalization line for LS calculation
51- 57 F7.3 10+6/s Acalc ? Transition probability from LS calculation
59- 65 F7.3 10+6/s Aexp Transition probability from Experiment
67- 72 F6.3 10+6/s e_Aexp Total uncertainty in TranP-Ex
74- 78 F5.2 [-] log(gf) Log of degeneracy * oscillator strength
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 27-Apr-2012