J/ApJS/207/26 MgH in the A2Π-X2Σ+ system (Hinkle+, 2013)
The magnesium isotopologues of MgH in the A2Π-X2Σ+ system.
Hinkle K.H., Wallace L., Ram R.S., Bernath P.F., Sneden C., Lucatello S.
<Astrophys. J. Suppl. Ser., 207, 26 (2013)>
=2013ApJS..207...26H 2013ApJS..207...26H
ADC_Keywords: Atomic physics ; Line Profiles ; Spectroscopy
Keywords: molecular data - stars: abundances - stars: late-type - sunspots
Abstract:
Using laboratory hollow cathode spectra we have identified lines of
the less common magnesium isotopologues of MgH, 25MgH and 26MgH,
in the A2Π-X2Σ+ system. Based on the previous analysis
of 24MgH, molecular lines have been measured and molecular constants
derived for 25MgH and 26MgH. Term values and linelists, in both
wavenumber and wavelength units, are presented. The
A2Π-X2Σ+ system of MgH is important for measuring the
magnesium isotope ratios in stars.
Description:
Rotationally resolved lines within the A2Π-X2Σ+ state
transition of the 25MgH and 26MgH isotopologues were measured from
spectra recorded by J. Black, P. F. Bernath, C. R. Brazier, and R.
Hubbard in 1984 (National Solar Observatory (NSO) archive reference
1984/03/13/#2) with the 1m Fourier transform spectrometer associated
with the McMath-Pierce Solar Telescope of the NSO at Kitt Peak.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 61 110 Term values for the A2Π state of 25MgH
table6.dat 41 140 Term values for the X2Σ+ state of 25MgH
table7.dat 61 110 Term values for the A2Π state of 26MgH
table8.dat 41 140 Term values for the X2Σ+ state of 26MgH
table9.dat 68 719 Line positions in wavenumber units
table10.dat 68 719 Line positions in wavelength units
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Byte-by-byte Description of file: table[57].dat
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Bytes Format Units Label Explanations
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1 I1 --- v [0/3] Vibrational quantum number
3- 4 I2 --- N1 [0/39] Rotational quantum number for F1 values
6- 9 F4.1 --- J1 [0.5/39.5] Angular momentum for the F1 values
11- 20 F10.4 cm-1 F1e [19273/29146] The F1e term value
22- 31 F10.4 cm-1 F1f [19273/29148] The F1f term value
33- 34 I2 --- N2 [2/40]? Rotational quantum number for F2 values
36- 39 F4.1 --- J2 [1.5/39.5]? J for the F2 values
41- 50 F10.4 cm-1 F2e [19318/29533]? The F2e term value
52- 61 F10.4 cm-1 F2f [19318/29530]? The F2f term value
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Byte-by-byte Description of file: table[68].dat
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Bytes Format Units Label Explanations
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1 I1 --- v [0/3] Vibrational quantum number
3- 4 I2 --- Ne [0/39] Rotational quantum number for e parity
6- 9 F4.1 --- Je [0.5/39.5] Angular momentum for e parity
11 A1 --- e [e] The e parity flag
13- 21 F9.4 cm-1 Fe [0/9265] The e parity term value
23- 24 I2 --- Nf [1/40] Rotational quantum number for f parity
26- 29 F4.1 --- Jf [0.5/39.5] Angular momentum for f parity
31 A1 --- f [f] The f parity flag
33- 41 F9.4 cm-1 Ff [11/9624] The f parity term value
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Byte-by-byte Description of file: table9.dat table10.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Band Band identifier (0-0, 0-1, 1-1 or 1-2)
5- 8 A4 --- Branch Branch identifier
10- 11 I2 --- N [0/39] Rotational quantum number
13- 22 F10.4 0.1nm w24MgH [5007/5622] Calculated 24MgH line (2) (1)
24- 30 F7.4 0.1nm dw24MgH ? Observed - calculated 24MgH value (2) (1)
32- 41 F10.4 0.1nm w25MgH [5007/5622] Calculated 25MgH line (2)
43- 49 F7.4 0.1nm dw25MgH ? Observed - calculated 25MgH value (2)
51- 60 F10.4 0.1nm w26MgH [5007/5622] Calculated 26MgH line (2)
62- 68 F7.4 0.1nm dw26MgH ? Observed - calculated 26MgH value (2)
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Note (1): Taken from Shayesteh & Bernath (2011JChPh.135i4308S 2011JChPh.135i4308S).
Note (2): In units of Angstroms.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 05-Sep-2013