J/A+A/418/1073 Emission lines in optical spectrum of 3 Cen A (Wahlgren+, 2004)
Emission lines in the optical spectrum of 3 Cen A.
Wahlgren G.M., Hubrig S.
<Astron. Astrophys. 418, 1073 (2004)>
=2004A&A...418.1073W 2004A&A...418.1073W
ADC_Keywords: Abundances ; Equivalent widths ; Spectroscopy ; Stars, peculiar
Keywords: line: identification - stars: abundances -
stars: chemically peculiar - stars: emission -
stars: individual: 3 Cen A
Description:
Weak emission lines in the optical spectrum of the helium-weak
chemically peculiar star 3 Cen A are tabulated. The observed
wavelengths, line identification information and equivalent
widths are presented based on data obtained with the ESO 1.5m
telescope and FEROS instrument (16-17 May 2000) and the VLT
with UVES spectrograph (24 June 2001).
Table 2 is a listing of all recorded emission lines arranged by
wavelength and including unidentified features. Table 3 arranges
the identified lines according to their ion and multiplet.
Objects:
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RA (2000) DE Designation(s)
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13 51 49.6 -32 59 38 HD 120709 = 3 CenA
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 109 423 Emission lines and equivalent widths
table3.dat 113 347 Emission line multiplets
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 7 F7.2 0.1nm Lam(obs) ? Observed wavelength
9 A1 --- l_EWF Limit flag on EWF
10- 13 F4.1 0.1pm EWF ? FEROS equivalent width
14- 16 A3 --- n_EWF Note on EWF (G1)
17 A1 --- --- [/]
18 A1 --- l_EWV Limit flag on EWV
19- 23 F5.2 0.1pm EWV ? VLT/UVES equivalent width
24- 26 A3 --- n_EWV Note on EWW (1)
28- 35 F8.3 0.1nm Lam(id) ? Line identification wavelength
37- 42 A6 --- Ion Ionic species and uncertainty flag
44- 49 F6.3 --- loggf ? Logarithm of line gf value
50- 51 A2 --- r_loggf loggf reference (1)
53- 61 F9.2 cm-1 Elower ? Energy of transition lower level
63- 71 F9.2 cm-1 Eupper ? Energy of transition upper level
73-103 A31 --- Combination Transition configurations
105-109 F5.3 --- Depth ? Absorption line depth (G2)
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Note (1): References for log gf values
G: guess
K: Kurucz (1995ApJ...452..102K 1995ApJ...452..102K)
KP: Kurucz & Peytremann (1975, Cat. VI/10)
MI: Migdalek J., 1976, Can. J. Phys. 54, 2272
NB, NI: National Bureau of Standards (NBS), National Institute
of Standards and Technology (NIST), www.nist.gov
SM: Smith,M.W. & Wiese,W.L. (1971ApJS...23..103S 1971ApJS...23..103S)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Ion Ion
7- 13 F7.2 0.1nm Lam(obs) ? Observed wavelength
15 A1 --- l_EWF Limit flag on EWF
16- 19 F4.1 0.1pm EWF ? FEROS equivalent width
20- 22 A3 --- n_EWF Note on EWF (1)
23 A1 --- --- [/]
24 A1 --- l_EWV Limit flag on EWV
25- 29 F5.2 0.1pm EWV ? VLT/UVES equivalent width
30- 32 A3 --- n_EWV Note on EWW (G1)
34- 41 F8.3 0.1nm Lam(id) Line id wavelength
42 A1 --- u_Lam(id) Uncertainty flag (1)
44- 48 F5.2 --- ID Element+ion (26.00 = Fe I)
50- 55 F6.3 --- loggf ? Logarithm of line gf value
57- 65 F9.2 cm-1 Elower Energy of transition lower level
67- 75 F9.2 cm-1 Eupper Energy of transition upper level
77-107 A31 --- Combination Transition configurations
109-113 F5.3 --- Depth ? Absorption line depth (G2)
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Note (1): Identification uncertainty indicator. The presence of a colon
indicates that the identification for the observed feature has a high
uncertainty.
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Global notes:
Note (G1): Equivalent widths given pertains to the FEROS spectrum and the
VLT/UVES instrument.
nd: no data from this telescope
fi: line filled-in, but note to continuum level
al: line filled-in at continuum level
b: equivalent width of absorption line
c: measurement affected by terrestrial absorption line
..: feature not observed
Note (G2): Synthetic spectrum absorption line depth, 1.000 is continuum level
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Acknowledgements: Glenn Wahlgren
(End) G.M. Wahlgren [Lund Observatory, Sweden], Patricia Bauer [CDS] 24-Feb-2004