J/ApJS/223/12 FTS high resolution of CoIII (Smillie+, 2016)
The spectrum and term analysis of CO III measured using Fourier transform and
grating spectroscopy.
Smillie D.G., Pickering J.C., Nave G., Smith P.L.
<Astrophys. J. Suppl. Ser., 223, 12-12 (2016)>
=2016ApJS..223...12S 2016ApJS..223...12S (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics ; Line Profiles ; Spectroscopy
Keywords: atomic data; line: identification; line: profiles;
methods: laboratory: atomic
Abstract:
The spectrum of CoIII has been recorded in the region 1562-2564Å
(64000cm-1-39000cm-1) by Fourier transform (FT) spectroscopy, and
in the region 1317-2500Å (164000cm-1-40000cm-1) using a 10.7m
grating spectrograph with phosphor image plate detectors. The spectrum
was excited in a cobalt-neon Penning discharge lamp. We classified
514 CoIII lines measured using FT spectroscopy, the strongest having
wavenumber uncertainties approaching 0.004cm-1 (approximately
0.2mÅ at 2000Å, or 1 part in 107), and 240 lines measured with
grating spectroscopy with uncertainties between 5 and 10mÅ. The
wavelength calibration of 790 lines of Raassen & Orti Ortin
(1984PhyBC.123..353R 1984PhyBC.123..353R) and 87 lines from Shenstone (1960CaJPh..38..677S 1960CaJPh..38..677S)
has been revised and combined with our measurements to optimize the
values of all but one of the 288 previously reported energy levels.
Order of magnitude reductions in uncertainty for almost two-thirds of
the 3d64s and almost half of the 3d64p revised energy levels are
obtained. Ritz wavelengths have been calculated for an additional 100
forbidden lines. Eigenvector percentage compositions for the energy
levels and predicted oscillator strengths have been calculated using
the Cowan code.
Description:
The spectrum of Co III was measured in the wavenumber region
33000-66000cm-1 (3030-1515Å) using the NIST vacuum ultraviolet
region (VUV) FTS (Spectrum number 6, taken on 1999 August 30).
The Co III spectrum was also observed in the region 234-2550Å with
the 10.7m NIST normal incidence vacuum spectrograph (NIVS; two spectra
named x872 and x875, recorded on 2005 May 26, and June 8,
respectively).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 166 782 Observed lines of Co III
table2.dat 117 287 Energy levels of Co III
table3.dat 132 815 Lines of Co III taken from
Raassen & Orti Ortin (1984PhyBC.123..353R 1984PhyBC.123..353R)
table4.dat 132 90 Lines of Co III taken from
Shenstone (1960CaJPh..38..677S 1960CaJPh..38..677S)
table7.dat 91 100 Ritz wavelengths of forbidden lines in Co III
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See also:
J/ApJS/207/13 : The spectrum and term analysis of V II (Thorne+, 2013)
J/MNRAS/390/733 : FTS reference UV wavelengths of CrIII (Smillie+, 2008)
J/ApJS/94/221 : New multiplet table for FeI (Nave+, 1994)
J/A+AS/130/541 : Co II oscillator strengths (Raassen+ 1998)
http://kurucz.harvard.edu/ : R.L. Kurucz site
http://www.nist.gov/pml/data/asd.cfm : NIST atomic spectra database
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- Int [0/10471] Integrated intensity in
arbitrary units
7- 11 F5.2 --- loggf [-4.5/1] Calculated log(gf) (1)
15- 17 I3 10-13m FWHM [6/72]? Full width at half maximum;
in milli-Angstroms units
19- 28 F10.5 0.1nm lambda [1317.43/2550.64] Observed wavelength (2)
32- 38 F7.5 0.1nm e_lambda [0.0001/0.007] One standard uncertainty
in lambda
41- 49 F9.3 cm-1 WaveNum [39194.1/75904.9] Observed wavenumber
54- 58 F5.3 cm-1 e_WaveNum [0.005/0.3] One standard uncertainty
in WaveNum
63- 72 F10.5 0.1nm lamR [1317.44/2550.65] Ritz wavelength (2)
76- 82 F7.5 0.1nm e_lamR [0/0.02] One standard uncertainty in lamR
85- 95 F11.4 cm-1 lower [46438.8/1268723.4] Lower level value
97-106 F10.3 cm-1 upper [98290.7/173851.1] Upper level value
111-149 A39 --- Class Classification
154 A1 --- Sp Line measured using FT spectroscopy ("F") or
grating spectroscopy ("G");
see the "Description" section above
156-164 A9 --- Note Additional line information (3)
166 A1 --- Use [*] *: line not used in energy level
optimization
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Note (1): Taken from this work unless indicated in column Note.
Note (2): Wavelengths are given in air for wavenumbers above 50000cm-1
using the 5 parameter formula of Peck & Reeder (1972JOSA...62..958P 1972JOSA...62..958P).
Wavelengths are in vacuum for wavenumbers below 50000cm-1.
Note (3): Note as follows:
II = is a line blended or doubly identified with a Co II line;
III = is a line blended or doubly identified with a Co III line;
Ne = is a line blended or doubly identified with a neon line;
Uk = is a line blended with an unknown line;
K = indicates the calculated log(gf) is from Kurucz (2007;
http://kurucz.harvard.edu/);
S = line stronger than expected from calculated log(gf)
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 20 A20 --- Desig Designation (configuration and term)
23- 26 A4 --- J J value
29- 39 F11.4 cm-1 Level [0/196713] Measured level value
41- 46 F6.4 cm-1 Uncstd One standard uncertainty in Level value (1)
53- 56 F4.2 cm-1 Uncgnd One standard uncertainty in Level value
with respect to ground level
60- 61 I2 --- Nl [1/53] Number of lines combining with level
63- 68 I6 cm-1 calLvC [-60/196381]? Calculated level value from
Cowan code
73- 76 A4 cm-1 delLvC ? Difference between measured & calculated
level value
80- 82 I3 % Eig1% [11/100]? Percentage eigenvector composition of
designation
84- 85 I2 % Eig2% [1/57]? Percentage composition of second component
87- 99 A13 --- Eig2 Designation of second component
101-102 I2 % Eig3% [1/25]? Percentage composition of third component
104-115 A12 --- Eig3 Designation of third component
117 A1 --- Note Additional note (2)
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Note (1): Minimum one standard uncertainty of level value with
respect to any other level (see text).
Note (2): Note as follows:
* = the level designation is not the largest eigenvector component.
# = the level designation is taken from the fourth largest
eigenvector component.
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Byte-by-byte Description of file: table[34].dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- Int Integrated intensity in arbitrary units (1)
7- 11 F5.2 --- loggf [-5.1/0.8] Calculated log(gf) (2)
13- 20 F8.3 0.1nm lambda [559.52/3782.31] Observed wavelength (3)
22- 26 F5.3 0.1nm e_lambda [0.005/0.02] One standard uncertainty in lambda
28- 36 F9.2 cm-1 WaveNum [26431/178724] Observed wavenumber (3)
38- 41 F4.2 cm-1 e_WaveNum [0.1/3] One standard uncertainty in WaveNum
43- 52 F10.5 0.1nm lamR [559.521/3782.32] Ritz wavelength (3)
54- 60 F7.5 0.1nm e_lamR [0.0001/0.02] One standard uncertainty
in lamR
63- 73 F11.4 cm-1 lower [0/112111.5] Lower level value
75- 84 F10.3 cm-1 upper [98290.7/196713] Upper level value
89-127 A39 --- Class Classification
129-131 A3 --- Note Additional line information (4)
132 A1 --- Use [*] *: line not used in energy level
optimization
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Note (1): Intensities taken from R&O (1984PhyBC.123..353R 1984PhyBC.123..353R) for table 3 or
Shenstone (1960CaJPh..38..677S 1960CaJPh..38..677S) for table 4 are on a different scale
to Table 1.
Note (2): From this work unless indicated by "K" in last column.
Note (3): Wavelengths are given in air for wavenumbers above 50000cm-1
using the 5 parameter formula of Peck & Reeder (1972JOSA...62..958P 1972JOSA...62..958P).
Wavelengths are in vacuum for wavenumbers below 50000cm-1.
For table 3: Wavenumbers and wavelengths for lines between
1412 Angstroms and 2038 Angstroms were modified from
R&O (1984PhyBC.123..353R 1984PhyBC.123..353R) using Figure 4. Wavelengths and wavenumbers
for an additional 714 lines below 1412 Angstroms and
above 2038 Angstroms were not modified.
For table 4: Wavelengths above 2250 Angstroms were increased
by 0.04 Angstroms from Shenstone (1960CaJPh..38..677S 1960CaJPh..38..677S).
Note (4): Taken from R&O (1984PhyBC.123..353R 1984PhyBC.123..353R) as follows:
d = diffuse line;
vd = very diffuse line;
w = broad line;
u = position doubtful;
sh = line on shoulder of stronger line;
as = asymmetrical, shaded to shorter wavelengths;
K = calculated log(gf) is from Kurucz (otherwise from this work);
S = line stronger than expected from calculated log(gf);
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Byte-by-byte Description of file: table7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- LowT Lower term of the 3d7 configuration
5- 8 A4 --- LowJ Lower J-value
10- 12 A3 --- UpT Upper term of the 3d7 configuration
14- 17 A4 --- UpJ Upper J-value
19- 27 F9.3 0.1nm lamAir [2352.4/19568.2]? Ritz air wavelength
29- 38 F10.3 0.1nm lamVac [1733.1/260550] Ritz vacuum wavelength
40- 46 F7.3 0.1nm UncLam [0.008/180] One standard uncertainty in
Ritz wavelength
48- 55 F8.2 cm-1 WaveNum [383.8/57699] Ritz wavenumber
57- 60 F4.2 cm-1 UncNum [0.1/0.4] One standard uncertainty in
Ritz wavenumber
62- 69 F8.2 cm-1 Lower [0/57225.6] Lower level value
71- 78 F8.2 cm-1 Upper [841.3/57699] Upper level value
80- 85 F6.4 s-1 Avalue [0.001/6.4] Transition rate from
Hansen et al. 1984ApJ...277..435H 1984ApJ...277..435H
87- 91 A5 --- Type Type of transition (1)
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Note (1): E2+M1 if minor contribution more than 2% of total.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 22-Apr-2016