J/ApJS/211/31 Atomic data of vanadium (V I) (Wang+, 2014)
TR-LIF lifetime measurements and HFR+CPOL calculations of radiative parameters
in vanadium atom (V I).
Wang Q., Jiang L.Y., Quinet P., Palmeri P., Zhang W., Shang X., Tian Y.S.,
Dai Z.W.
<Astrophys. J. Suppl. Ser., 211, 31 (2014)>
=2014ApJS..211...31W 2014ApJS..211...31W
ADC_Keywords: Atomic physics
Keywords: atomic data; methods: laboratory: atomic; techniques: spectroscopic
Abstract:
Radiative lifetimes of 79 levels belonging to the 3d34s4p, 3d44p,
3d34s5p, 3d45p, and 3d34s4d configurations of V I with energy
from 26604.807 to 46862.786cm-1 have been measured using
time-resolved laser-induced fluorescence (TR-LIF) spectroscopy in
laser-produced plasma. The lifetime values reported in this paper are
in the range of 3.3-494ns, and the uncertainties of these measurements
are within ±10%. A good agreement was obtained with previous data.
HFR+CPOL (Hartree-Fock with relativistic corrections method - Cowan;
1981tass.book.....C 1981tass.book.....C + core-polarization; Quinet et al.
1999MNRAS.307..934Q 1999MNRAS.307..934Q) calculations have been performed and used to
combine the calculated branching fractions with the available
experimental lifetimes to determine semi-empirical transition
probabilities for 784 V I transitions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 96 784 Transition probabilities, oscillator strengths and
branching fractions for the strongest decay channels
depopulating the levels for which the lifetime has
been measured in neutral Vanadium (Z=23)
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See also:
J/A+A/561/A7 : Planets chemical signatures: beyond solar twins (Ramirez+, 2014)
J/A+A/551/A136 : Transition probabilities in TeII+TeIII spectra (Zhang+, 2013)
J/A+A/543/A44 : Atomic data for iron peak & light odd-Z ions (Palmeri+, 2012)
J/A+A/525/A59 : Atomic data for Al ions (Palmeri+, 2011)
J/A+A/422/1109 : SnII Lifetimes and oscillator strengths (Colon+, 2004)
J/ApJS/121/591 : Oscillator Strengths for SiVI (Coutinho+, 1999)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 F9.3 cm-1 E1 [18085/46863] Upper level energy
11 A1 --- P1 [eo] Upper level parity (e=even, o=odd)
13- 14 I2 --- 2J1 [1/11] Upper total quantum number J (x2)
15- 16 A2 --- --- [/2]
18- 22 F5.1 ns Time [3.3/494] Measured lifetime
24- 27 F4.1 ns e_Time [0.2/46] Uncertainty in Time
29 A1 --- r_Time [def] Reference for Time (1)
31- 39 F9.3 cm-1 E0 [0/39399] Lower level energy
41 A1 --- P0 [eo] Lower level parity (e: even, o: odd)
43- 44 I2 --- 2J0 [1/13] Lower total quantum number J (x2)
45- 46 A2 --- --- [/2] ("/5" replaced by "/2" at CDS)
48- 56 F9.4 nm lambda [217/2034.3] Wavelength; Thorne et al.
2011ApJS..192...11T 2011ApJS..192...11T
58- 65 E8.2 s-1 gA Transition probability
67- 71 F5.2 [-] log(gf) [-3.3/0.8] Log oscillator strength
73- 76 F4.1 % BF Branching fraction
78- 85 E8.2 s-1 gAc Corrected transition probability (2)
87- 91 F5.2 [-] log(gf)c Corrected log oscillator strength (2)
93- 96 F4.2 --- CF Cancellation factor (3)
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Note (1): Reference as follows:
d = Whaling et al. (1985A&A...153..109W 1985A&A...153..109W);
e = This work;
f = Xu et al. (2006JOSAB..23.2597X 2006JOSAB..23.2597X).
Note (2): Determined by a combination of the experimental lifetime (reported
in the fourth column) and the HFR+CPOL BF.
Note (3): As defined in Cowan (1981tass.book.....C 1981tass.book.....C). The transition probability
for which the CF is less than 0.05 is affected by a strong
cancellation effect and should be taken with caution.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 12-May-2014