J/ApJS/239/11 800-13000cm-1 wide range OI spectra (Civis+, 2018)
FTIR laboratory measurement of OI spectra in the 0.77-12.5µm spectral
range: Rydberg states and oscillator strengths.
Civis S., Kubelik P., Ferus M., Zanozina E.M., Pastorek A.,
Naskidashvili A.V., Chernov V.E.
<Astrophys. J. Suppl. Ser., 239, 11 (2018)>
=2018ApJS..239...11C 2018ApJS..239...11C
ADC_Keywords: Atomic physics; Spectra, infrared
Keywords: atomic data ; methods: laboratory: atomic ; techniques: spectroscopic
Abstract:
Precision laboratory measurements are presented for 135 OI lines in
the infrared (including 51 lines not measured previously in the
laboratory) using time-resolved Fourier transform infrared
spectroscopy in the 800-13000cm-1 region. The fine structure of some
lines is observed for the first time. Using our linelist together with
all relevant measurements from other works, we perform a
re-optimization of OI level energies to obtain an internally
consistent system of 2p3[4S]nl levels. Some OI level energies
measured long ago are corrected. We also present a long list of
oscillator strengths calculated with the help of quantum defect
theory.
Description:
The OI excited energy states were produced using a pulsed discharge
plasma. A 20cm long discharge tube with water-cooled stainless steel
electrodes was filled with a mixture of helium and oxygen using a
slow, constant flow (the pressure was set to 1 and 0.5 Torr,
respectively). The voltage drop across the discharge was 1kV, with a
pulse width of 22us and a peak-to-peak current of 50mA.
The IR spectra of OI were recorded using the time-resolved Fourier
transform spectrometric method developed in our laboratory. This
approach enables the measurement of IR spectra with a high spectral
resolution (up to 0.0075cm-1) and a 1-us time resolution over a wide
spectral region. To cover the spectral range from 800 to 13000cm-1,
we used several bandpass interference filters (procured from
Northumbria Optical Coatings Limited, U.K.), two different beam
splitters (KBr and CaF2), and two detectors (MCT, InSb).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 138 107 OI level energies extracted from the present
measurement and other works
table3.dat 72 278 *The experimentally measured lines included into
our level optimization
table4.dat 109 449 *QDT-calculated transition dipole line strengths,
Sik, oscillator strengths, fik, and transition
probabilities, Aki, of the oxygen atom in
the 800-13000cm-1 range
--------------------------------------------------------------------------------
Note on table3.dat: The Ritz wavenumbers are calculated from the level energies
listed in Table 2.
Note on table4.dat: For the quantum defect theory (QDT) approach, see
Seaton 1983RPPh...46..167S 1983RPPh...46..167S and Chernov et al. 2000EPJD....8..347C 2000EPJD....8..347C
--------------------------------------------------------------------------------
See also:
J/A+A/416/655 : Atomic lines in IR for ultracool dwarfs (Lyubchik+, 2004)
J/ApJS/178/280 : Compendium of ISO far-IR extragalactic data (Brauher+, 2008)
J/ApJ/753/13 : OI equivalent widths in Be stars (Mathew+, 2012)
J/A+A/554/A24 : Infra-red transitions of Ca and Mg (Civis+, 2013)
J/ApJ/778/132 : C and O abundances in 55 Cnc (Teske+, 2013)
J/ApJ/791/58 : C & O abundances across the Hertzsprung gap (Adamczak+, 2014)
J/ApJS/211/27 : An atlas of FUV spectra of 31 Cyg (Bauer+, 2014)
J/A+A/568/A25 : C and O abundances in stellar populations (Nissen+, 2014)
J/ApJS/214/26 : Line lists for CN isotopes transitions (Sneden+, 2014)
J/A+A/573/A12 : SN1993J spectra 100-500 days post-explosion (Jerkstrand+, 2015)
J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)
J/ApJS/225/15 : IR excess stars from Tycho-2 and AllWISE (Cotten+, 2016)
J/ApJS/226/19 : FIR spectra of AGNs from Herschel (Fernandez-Ontiveros+, 2016)
J/ApJS/222/1 : Faint ALMA 1.2mm sources down to ∼0.02mJy (Fujimoto+, 2016)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- Ref Ref = "Reference" levels
(Zink+ 1991ApJ...371L..85Z 1991ApJ...371L..85Z ;
De Natale+ 1993PhRvA..48757D)
5- 18 A14 --- Level Level
20- 32 F13.6 cm-1 Energy [158/107598]? Energy level from this work
34- 41 F8.6 cm-1 e_Energy [0/0.05] Energy level uncertainty
43- 55 F13.6 cm-1 ELOPT [158/107598] LOPT code
(Kramida 2011CoPhC.182..419K 2011CoPhC.182..419K) energy level
57- 64 F8.6 cm-1 e_ELOPT [5e-06/0.02] ELOPT uncertainty
66- 75 F10.3 cm-1 EM16 ? Energy level from Moore 1976stas.book.....M 1976stas.book.....M
76 A1 --- f_EM16 [a] Flag on EM16 (1)
78- 87 F10.3 cm-1 EB87 [105441/107598]? Energy level
from Brown+ 1987CPL...133..239B 1987CPL...133..239B
89- 98 F10.3 cm-1 EC88 [102968/107598]? Energy level
from Chang+ 1988PhyS...38...22C 1988PhyS...38...22C
100-112 F13.6 cm-1 EI08 [158/105410]? Energy level
from Ivanov+ 2008MNRAS.389L...4I 2008MNRAS.389L...4I
114-121 F8.6 cm-1 e_EI08 [5e-06/0.008]? EI08 uncertainty
123-132 F10.3 cm-1 EM17 [76794/105166]? Energy level
from Marinov+ 2017JPhB...50f5003M 2017JPhB...50f5003M
134-138 F5.3 cm-1 e_EM17 [0.004/0.009]? EM17 uncertainty
--------------------------------------------------------------------------------
Note (1):
a = NIST ASD (Kramida A., Ralchenko Y., Reader J. and NIST ASD Team. 2018,
NIST Atomic Spectra Database (version 5.5.6)) contains
106787.903cm-1 for the 6g3G and 6g5G terms.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 36 A36 --- Transition Transition, i ← k
38- 50 F13.6 cm-1 nu [0.02/105182.1] Used wavenumber
52- 59 F8.6 cm-1 e_nu [3.7e-05/0.08] Uncertainty of used wavenumber
61- 68 F8.5 cm-1 O-Ritz [-0.05/0.05] Observed-minus-Ritz values
70- 72 A3 --- Ref References (1)
--------------------------------------------------------------------------------
Note (1): The sources of the lines as follows:
FS = L. Gianfrani+ (1991, Nouv Cim D13, 1221, doi:10.1007/BF0245873);
M. de Angelis+ (1991, Phys. Rev. A 44, 5811,
doi:10.1103/PhysRevA.44.5811); F. Marin+ (1993ZPhyD..25..191M 1993ZPhyD..25..191M);
Marinov+ (2017JPhB...50f5003M 2017JPhB...50f5003M, doi:10.1088/1361-6455/aa5a88);
B87 = P. R. Brown and P. B. Davies and S. A. Johnson (1987CPL...133..239B 1987CPL...133..239B);
TW = this work;
E63 = K. B. S. Eriksson & H. B. S. Isberg
(1965, ARKIV FOR FYSIK, VOL 24, 41, 549);
E65 = K. B. S. Eriksson (1965, ARKIV FOR FYSIK, VOL 30, 16, 199);
I68 = Bengt Isberg (1968, ARKIV FOR FYSIK, VOL 35, 5, 495);
UV = T. I. Ivanov+ (2008MNRAS.389L...4I 2008MNRAS.389L...4I,
doi:10.1111/j.1745-3933.2008.00507.x),
Marinov+ (2017JPhB...50f5003M 2017JPhB...50f5003M, doi:10.1088/1361-6455/aa5a88)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 20 A20 --- Transition Transition, i ← k
23- 32 F10.3 cm-1 Ei [73768.2/106788.6] Lower level energy, Ei
34- 43 F10.3 cm-1 Ek [86625.7/107597.5] Upper level energy, Ek
45- 53 F9.3 cm-1 nu [807.2/12863.3] Ritz wavenumber
55- 65 F11.5 nm lambda [777.1/12388.2] Air wavelength
67- 74 E8.2 --- Sik-QDT [0.003/78000] Transition dipole line strength,
QDT (in au), this work
76- 83 E8.2 --- fik-QDT [8.9e-06/2.2] Oscillator strength, QDT,
this work
85- 92 E8.2 s-1 Aik-QDT [61.5/41500000] Transition probability, QDT,
this work
94-101 E8.2 --- fik-NIST [1.7e-05/1.3]? Oscillator strength from NIST
103-104 A2 --- acc-NIST NIST accuracy codes (1)
106-109 A4 --- Ref-NIST NIST Reference codes (2)
--------------------------------------------------------------------------------
Note (1): NIST accuracy codes as follows:
A: ≤ 3%;
B+: ≤ 6%;
B: ≤ 10%;
C+: ≤ 15%;
C: ≤ 25%.
Note (2): NIST Reference codes as follows:
HB91 = Hibbert et al. (1991JPhB...24.3943H 1991JPhB...24.3943H);
BZ91 = Butler & Zeippen (1991, J. Phys. IV, Vol 1, doi:10.1051/jp4:1991117).
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-Dec-2018