J/A+A/580/A10 New MnII energy levels (Castelli+, 2015)
New Mn II energy levels from the STIS-HST spectrum of the HgMn star HD 175640.
Castelli F., Kurucz R.L., Cowley C.R.
<Astron. Astrophys. 580, A10 (2015)>
=2015A&A...580A..10C 2015A&A...580A..10C
ADC_Keywords: Stars, peculiar ; Spectroscopy ; Models, atmosphere
Keywords: line: identification - atomic data - stars: atmospheres -
stars: chemically peculiar - stars: individual: HD 175640
Abstract:
The NIST database lists several MnI lines that were observed in
the laboratory but not classified. They cannot be used in spectrum
synthesis because their atomic line data are unknown. These lines are
concentrated in the 2380-2700Å interval. We aimed to assign
energy levels and loggf values to these lines.
Semi-empirical line data for MnII computed by Kurucz were used to
synthesize the ultraviolet spectrum of the slow-rotating, HgMn star
HD 175640. The spectrum was compared with the high-resolution
spectrum observed with the HST-STIS equipment. A UVES spectrum
covering the 3050-10000Å region was also examined.
Description:
New MnII energy levels were determined from the analysis of an
ultraviolet HST-STIS spectrum and a UVES optical spectrum. For each
new level, the most significant lines from the level are listed in
tablea1.dat. For each new line the wavelength, the computed loggf value,
and the upper and lower energy levels are given.
tablea2.dat tabulates the MnII lines in the 2400-3040Å interval that
are listed in the NIST database, observed in the spectrum, but not
predicted by the MnII line list computed by Kurucz for this paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 126 278 The new energy levels of MnII and the predicted
observed in the spectrum
tablea2.dat 120 54 Lines from the NIST database in the 2400-3040Å
interval that are observed in the spectrum, but
are either not predicted or predicted as too weak
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See also:
J/ApJS/205/14 : Energy levels and spectral lines of MnII (Kramida+, 2013)
J/A+A/425/263 : Spectroscopic atlas of HD175640 (Castelli+, 2004)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 10 F10.3 cm-1 E1 [82303/119938] Energy of the upper level
12- 32 A21 --- Conf1 Configuration of the upper energy level
34- 41 A8 --- Term1 Term of the upper energy level configuration
43- 45 F3.1 --- J1 [1/7] J quantum number of the upper energy level
47- 55 F9.3 cm-1 E0 [14325/85637] Energy of the lower energy level
57- 71 A15 --- Conf0 Configuration of the lower energy level
72- 79 A8 --- Term0 Term of the lower energy level configuration
81- 83 F3.1 --- J0 [0/8] J quantum number of the lower energy level
85- 92 F8.3 0.1nm lam.R [1444./3036] Wavelength from energy levels
(λ(Ritz))
94- 99 F6.3 [-] loggf log(gf) value computed by Kurucz (K14)
101-108 F8.3 0.1nm lam.N [2382/2958]? Wavelength from the NIST database
(λ(NIST))
110-126 A17 --- Notes Notes (1)
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Note (1): Notes are:
unassigned = the MnII line is listed in the NIST database but is not
classified.
DIFFERENT assign = the MnII line is classified in the NIST database, but the
assignement is different from that given in this paper
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 8 F8.3 0.1nm lambda [2409/2933] Wavelength from the NIST database
11- 16 F6.3 [-] loggf log(gf) value computed by Kurucz (K14)
18- 26 F9.3 cm-1 E0 [27589/79801] Energy of the lower level
28 I1 --- J0 [0/6] J quantum number of the lower energy level
31- 43 A13 --- Conf0 Configuration of the lower energy level
45- 52 A8 --- Term0 Term of the lower energy level configuration
54- 63 F10.3 cm-1 E1 [66645/119279] Energy of the upper level
65 I1 --- J1 [1/6] J quantum number of the upper energy level
68- 93 A26 --- Conf1 Configuration of the upper energy level
95-102 A8 --- Term1 Term of the upper energy level configuration
104-120 A17 --- Notes Notes (1)
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Note (1): Notes are:
obs = the line is observed but is not predicted
obs at ... = the line is observed at a wavelength different from that
given in the NIST database. It is not predicted.
obs blend = the line is observed but is blended
obs weak = the line is observed as weak but is not predicted
STRONG = the line is observed as strong but is not predicted
STRONG, blend = the line is observed as strong but is blended
STRONG, pred weak = the line is observed as strong but is predicted as weak
pred weak = the line is observed but is predicted as too weak
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Acknowledgements:
Fiorella Castelli, castelli(at)oats.inaf.it
(End) Patricia Vannier [CDS] 28-Apr-2015